Moving the Inlet Air Temp Sensor For More Power? 2.5L Jeep Engine

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Jeep Sheep TV

Jeep Sheep TV

Күн бұрын

Can we improve engine performance by simply moving a sensor? Lets try and find out!
↓↓ Tool List ↓↓
• 1/4 - 20 Tap: amzn.to/3b91Itb
• 1/4 - 18 NPT Tap: amzn.to/2Dijn5e
• 1/4 - 18 NPT Plug: amzn.to/3b7Insk
• Thread Tape: amzn.to/3gFwQkX
• 3/4in Socket
• Drill bits
• Gasket maker or some kind of sealant
• Soldering Iron: amzn.to/2QCgY8z
• Wire : amzn.to/3hIOk1n
• Heat Shrink
• Wire Strippers
Want To Support This Project?
• Online Store:
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Пікірлер: 151
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
UPDATE! I have driven the Jeep roughly 100 miles and the temperature outside got up to 86 degrees F. I could totally tell a difference! The loss of power after driving in the heat is gone and it has some good "grunt" right off the line. Overall the power delivery is much more consistent (like a normal car lol). Maybe its a little faster but its still not...fast. This mod just worked its way to the top of my list of favorite mods. For the cost (basically none) it has noticeable results. Now we wait till winter to find out if the original sensor placement had anything to do with cold weather! More updates to come.
@williamburch1321
@williamburch1321 3 жыл бұрын
Thanks for the vid and update man! Good to know. I’m definitely doing this. I’m actually making my own cowl induction system with abs pipe and silicon elbows. Fortunately it will pass right my that sensor so I probably won’t even need to extend the wire. Keep the 2.5 videos coming. I’m glad to see someone else who appreciates an underdog engine
@LiamLafferty
@LiamLafferty 3 жыл бұрын
@@williamburch1321 Awesome! and thanks for the update. if you have a chance send me an email. I would love to see pics!
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
@@williamburch1321 Sorry I replied with my other account.. same thing though I would love to see photos, Same email address laffingstok@gmail.com Thanks for watching!
@benfreers1075
@benfreers1075 3 жыл бұрын
Hot day... dragstrip... bag of ice in your airbox before and after... 😁👍
@willhoel5533
@willhoel5533 3 жыл бұрын
Any update for the cold weather?
@bobshirley5419
@bobshirley5419 3 жыл бұрын
Thank you for doing stuff on this motor. No one else is!
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
That's why I am here!
@heatmizer-jim6762
@heatmizer-jim6762 2 жыл бұрын
I know, right??? This is my favorite YJ channel. I love my 2.5, but WOW, is it gutless! Hahahaha I'm looking forward to getting some of these mods done on mine!
@tomynoks
@tomynoks 3 жыл бұрын
LOVE YOUR CHANNEL, Brother!!! I love taking my gutless, slow..... dang 4 banger YJ and little by little, with every mod, I am seeing increases in "PEPPY-NESS" at lower speeds around town and an over-all increase so far of close to 20mph improvement on the freeway! It will now almost hit 80!! :)
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
I'm in the same boat! There is just something rewarding about it, the gains are so noticeable with this engine because it's so slow to begin with.
@leegately3590
@leegately3590 Жыл бұрын
Brilliant! Thanks, Professor. I don't think I'll be trying this modification, but I really enjoyed watching your project.
@brianchristenson6055
@brianchristenson6055 Жыл бұрын
I will do this in the Spring when things warm up. Thx!)
@timfritts4081
@timfritts4081 3 жыл бұрын
Thanks, I think I will try it on my 2000 TJ. T.
@anneshirley7715
@anneshirley7715 3 жыл бұрын
The crickets symphony in the backround is one radass fx. Your work is much appreciated Thank You! 👍🐑🚜👍
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
I'm glad my extensive sound editing doesn't go unnoticed lol
@LostFart
@LostFart 3 жыл бұрын
Good video, I'm glad it helped!
@daltonjerin2114
@daltonjerin2114 3 жыл бұрын
Definitely going on the list for my Yj
@tomynoks
@tomynoks 3 жыл бұрын
DO IT!! Takes no time at all... well worth the 15 min. if you relocate and don't have to solder. See my other comments.
@daltonjerin2114
@daltonjerin2114 3 жыл бұрын
Tom Smith awesome! Yeah definitely getting this done this week! Honestly just trying to get this on 2.5l to go around 70😂😂😂😂
@jasonscharf97tj
@jasonscharf97tj Жыл бұрын
Thanks for the video my tj had rough idle after it got warm just moved it up into my cold air intake it's cold out now I will post an update in a couple of weeks
@jasonscharf97tj
@jasonscharf97tj Жыл бұрын
Update took tj wheeling today running so much better thanks again 👍👍
@charlesandrews3450
@charlesandrews3450 Жыл бұрын
some really deep thinking guy,i like it.
@ForceBuilt
@ForceBuilt 3 жыл бұрын
I may try this on my 2.5 TJ. I do notice that it seems more powerful in the mornings when the engine is cold. Great video!
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
Do it!
@jemlesvideo
@jemlesvideo 3 жыл бұрын
It only costs time, and it looks fairly worthy to do ! I indeed noticed that cold air like in every car does a difference ! But also it is claimed that renewing that sensor makes a good power up. Most of these are from back in the days when those Jeeps was sold new and 20 years for a sensor it's a bit too much !
@anactualmechanic2058
@anactualmechanic2058 3 жыл бұрын
Nice job with the adapter plate. I just gorilla glued my temp sensor in ... lol
@ethantastic
@ethantastic 3 жыл бұрын
yea, seriously
@novanut1964
@novanut1964 3 жыл бұрын
i just moved my new iat sensor, the threads were bigger i didnt want to drill manifold yet. 1987 jeep comamche 2.5, finding the correct ohm sensor took awhile
@mercman2.5
@mercman2.5 3 жыл бұрын
I think I will try drilling air box. Add O ring to outside of sensor a placing a brass nut inside air box and a little blue loctite. GREAT IDEA!!! 98 TJ 2.5 GETTING NEW ENGINE IN 2 WEEKS!! Long live 2.5 iron...
@mercman2.5
@mercman2.5 3 жыл бұрын
I have done more reading on this mod and I had suspected that running rich at open throttle may cause carbon buildup on pistons and could lead to detonation, something to think about.
@supercoolbuddiesclub2408
@supercoolbuddiesclub2408 16 сағат бұрын
I looked at a base tune for a '97 XJ 4.0 in VCM suite: For fuel injection: At 68F the fuel correction parameter is 1.1367. At 140F it is 1.0781. For spark, at 68F and manifold pressure >80.0 kPa, there are 2 additional degrees of advance (and even more for colder temps). In comparison, at 127F, there is 0 additional advance. By relocating the IAT, in regular weather you're getting a richer mixture and some more advance. E.g. here it was 75 degrees here the other day, but my manifold mounted IAT was reading ~125F. I assume they probably did account for the IAT location reading being hot when they were developing the tuning - but you really wonder if this tuning was performed for Toledo Ohio. Hence why some guys report gains and others report losses
@JeepSheepTV
@JeepSheepTV 16 сағат бұрын
@supercoolbuddiesclub2408 I didn't know about the timing adjustments. That's very interesting! I would assume that it performs best the closer the reading is to the actual air temp entering the engine.
@kenmcalister3540
@kenmcalister3540 3 жыл бұрын
Great video JSTV. Just in case these sensors could be affected by dust and dirt. It might be best if it is installed after the air cleaner element.
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
I agree, however I really like this location from a packaging stand point and the sensor does have a protective cage around it so I figured it was worth a shot.
@shawndoyle6460
@shawndoyle6460 2 жыл бұрын
Was wondering the same thing what about dust and dirt...
@MrZeissOne
@MrZeissOne 2 жыл бұрын
Maybe build a Little screen box around it ?
@Graves-hx9nb
@Graves-hx9nb 9 ай бұрын
In the original location it was covered in oil and still working...
@marcusriley5388
@marcusriley5388 3 жыл бұрын
Maybe pick up a junkyard sensor and put it in the stock location. It should seal fine even when not plugged in, and then you can swap the plug back and forth from the stock to the new sensor on a hot day and maybe with back to back runs you will be able to see more difference (or not). Can't wait for updates!
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
That's a good idea. I might try that if I get more hot days before it starts to get cold.
@tomynoks
@tomynoks 3 жыл бұрын
@@JeepSheepTV Pffft.. that sensor is like $18 with enough wire/connector to relocate cheaper without the connector as well. www.ebay.com/itm/Air-Charge-Temperature-Sensor-FSK-Walker-Products-210-91013/143676825365?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649
@felixmikkialmosttoasted3911
@felixmikkialmosttoasted3911 3 жыл бұрын
@@JeepSheepTV i was thinking the same thing but you could have a toggle switch for cold start then switch to more power. With 2 new sensors- this would be the true test if this works while driving if you flipped the toggle.
@heatmizer-jim6762
@heatmizer-jim6762 2 жыл бұрын
I love this channel! Would wrapping the exhaust manifold in the insulating tape(like I see on many hot rods) also help to keep the heat from radiating into the engine bay, and out the exhaust pipe where it's supposed to going?
@JeepSheepTV
@JeepSheepTV 2 жыл бұрын
Yes, you will see a lot of 4.0 guys put heat wrap on their intake manifolds for this very reason. I would like to do the same on mine as well as it would help. Moving the sensor is a bit more dramatic and ensures that heat soak will not have an effect on the sensor. Wrapping the manifold will make it so it takes longer for heat soak to have an effect on the sensor (if it's in OEM position).
@swatscorner
@swatscorner Жыл бұрын
Just stumbled across your channel. Great intel here, and glad to see videos on the 2.5L YJ. Enjoying mine so far. May explore this mod. Just trying to smooth the engine out right now. O2 sensor helped and got rid of that CEL. Now need to replace MAP sensor and possibly this manifold sensor. If I move it, I was thinking of moving it to post-filtered air rather than pre-filtered air as you did. Thoughts on that?
@JeepSheepTV
@JeepSheepTV Жыл бұрын
Either is fine. Just getting the sensor away from the hot manifold will help with consistent readings.
@williamwest5827
@williamwest5827 3 жыл бұрын
Let us know how it worked out when you get more mileage under your belt on the modification.
@thehatefull1761
@thehatefull1761 3 жыл бұрын
Playing with the iac on a resister slide is given more fuel and keeping it there with out the a/f sensor being able to compensate in time before shifts. I think I'm ready for the AMR 500.
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
You are adjusting the Idle air valve to change AFR? Now that's interesting. Or are you referring to the inlet air temp? The AMR 500 seems to put out a pretty small amount of air per revolution. Might be too small for this displacement of engine. Take a look at the Eaton M60.
@thehatefull1761
@thehatefull1761 3 жыл бұрын
@@JeepSheepTV change the pulley size
@thehatefull1761
@thehatefull1761 3 жыл бұрын
@@JeepSheepTV so from what I can tell what's happening is that whenever you adjust the resistance on the idle air control valve solenoid it is affecting the values on the af sensor that is causing a controllable air fuel mixture. Uncensored air ?. I think there's a simple way to trick this engine into higher fuel ratios using uncensored air
@thehatefull1761
@thehatefull1761 3 жыл бұрын
@@JeepSheepTV the only DTC it throws after driving it for a while is running lean running rich Bank 1
@thehatefull1761
@thehatefull1761 3 жыл бұрын
@@JeepSheepTV already got the supercharger ,belt that I think's going to work, Mount that I made that I think is going to work and pulley that thinks going to work I just haven't had time to put it in there yet but I'm going to see if there is a way to supercharge it without having to program it. If I can get an extra 30 horsepower I'll be happy
@icomeinpeace6975
@icomeinpeace6975 2 жыл бұрын
I'm going to try this on my 89 jeep wrangler yj 2.5L. I have a real time pcm monitor that tells me just about everything the engine is doing while it's running from thrown codes to injector pulse time to rich lean condition and if its in open or closed loop.
@JeepSheepTV
@JeepSheepTV 2 жыл бұрын
Cool, it will be interesting to see what you learn.
@nathanteig7108
@nathanteig7108 Жыл бұрын
How did this work for you?
@buddymartin7923
@buddymartin7923 3 жыл бұрын
Great video. You do a great job. Stay with squirrel power!! Lol
@blownaway4371
@blownaway4371 Ай бұрын
I know it's been awhile but, I picked up a 2001 Dakota base pickup. 2.5/AX-15 rwd (3.55) I've had a few Cherokees with the 2.5 and I like them. Fairly easy to work on and there are some performance parts. But as you know, the cost doesn't bring much. I'd like to ask if you've whittled down the vacuum lines and "trees" where they come together (im to tired to scroll through your videos). I like the hard plastic lines for durability but the rubber hoses usually split.
@JeepSheepTV
@JeepSheepTV Ай бұрын
I am using mostly silicone lines right now, they are really easy to work with and do well in high heat applications. Just keep them away from anything that can tear them, they are easy to cut and or pull off. So really good for engine bay but maybe bad for the lines that run under the jeep to the transfer case or transmission. I have also reduced my number of vacuum lines. I no longer use vac for my front axle disconnect and I have removed the line that goes under the dash.
@ralphgeames4620
@ralphgeames4620 2 жыл бұрын
what if you have a cold air intake where would you put the sensor if you dont have the box
@JeepSheepTV
@JeepSheepTV 2 жыл бұрын
You can put it on the intake piping. Drill a hole, stick it in and you can epoxy it in place or maybe your can try to thread it into the hole, whatever works.
@gdub78sbcglobalnet
@gdub78sbcglobalnet 3 жыл бұрын
any notable change in emissions? I'm in So Cal, I believe I would benefit from this, but the smog tests are pretty strict.
@JFabrication
@JFabrication Жыл бұрын
This would pass a smog test in any state unless there were other issues with the engine or sensors. Its also easily reversible for a test if you purchase a new IAT and leave the old in the manifold. Then just unplug the new and plug back the manifold factory location. Very unlikely that this would be necessary just for smog test, possibly for extreme cold weather startup though ?
@basshunter6002
@basshunter6002 2 жыл бұрын
What would be a good location for the sensor on this jeep with a cold air intake? (ie. the air box is replaced with just a filter and piping to the throttle body.) I would still like to relocate the sensor just not sure what would be the ideal location in this scenario.
@LiamLafferty
@LiamLafferty 2 жыл бұрын
Somewhere in the intake piping, cut a hole in the tube and put it there, just be sure to seal it well when done.
@jemlesvideo
@jemlesvideo 3 жыл бұрын
14:08 A riveted plate here, I haven't tested it but it seems mettalic. It is near the air entrance not plain front but the sensor can catch the air okay. Question is does threading the sensor directly in it will offer enough material to hold strong ? Main advantage is that it seems less risky to crack the airbox when threading because it's an independent removable part that can be duplicated to a thicker one if needed. It needs a longer sensor wire extend but it's a minor trouble
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
I looked at that area. I don't think you can thread directly into it but you can do something there. I chose not to go there because since I have E fans and no shroud I will actually stand in the engine bay when I work on stuff. I didn't want to put the sensor in a place where I could bump into it and break it easily.
@tomynoks
@tomynoks 3 жыл бұрын
You can buy an extension connector for about $12 on eBay. There are 12" up to 22" that i saw.. Would be useful for having 2 sensors, one on intake in original spot and one wherever to test best locations.
@tomynoks
@tomynoks 3 жыл бұрын
Update: The ext cable is NOT an exact fit!! It is made for later Wrangler models. The harness will plug into it, but the sensor connector needs a little modification to plug in. Still, this is a way to do this mod without soldering, or you can do like I did and locate the sensor just above the throttle body on the intake tube without modifying the harness whatsoever.
@captainjung5502
@captainjung5502 Жыл бұрын
What about a hood scoop to keep the air temperature cooler?
@JeepSheepTV
@JeepSheepTV Жыл бұрын
Everything helps, although with the 4cyl the under hood temps are not too high. The issue I outline in this video is mainly heat being conducted to the temp sensor through the aluminum intake manifold causing it to read warmer than the air rushing into the engine. So removing the sensor from the manifold is intended to make the reading more accurate, as you move further away from the manifold you may cause the reading to be colder than what is going into the engine resulting in it running more rich, which I did on purpose in this video.
@jamesford2942
@jamesford2942 2 жыл бұрын
The tune for emissions is not necessarily lean! One of the main things that the EPA wants to control is nitrogen oxide levels. These go up in lean, hot, combustion. This is what got VW in trouble in the dieselgate scandal because they were lying to the emissions test with software in the car. This is why European cars have a hard time meeting emissions. They are concerned with fuel economy and particulates while in the US they are concerned with nitrogen oxide levels and these are diametrically opposed.
@JeepSheepTV
@JeepSheepTV 2 жыл бұрын
I remember this from one of my engines classes in college. The topic of emissions and economy can be quite the rabbit hole! Thanks for watching my videos I am really enjoying your comments! I want to see this 2.5l you mentioned previously.
@marcograppasonno7965
@marcograppasonno7965 3 жыл бұрын
Without dyno sheet's I wouldn't believe that would do anything.
@flatroc1
@flatroc1 2 жыл бұрын
Does this air temp sensor relocate mod work with the 4.0 ltr. 6 cyl. also ?
@JeepSheepTV
@JeepSheepTV 2 жыл бұрын
I don't know, the principal is the same but I'm not sure how much of a change you will make.
@jorgezuni2818
@jorgezuni2818 10 ай бұрын
Isn’t there two different types of ambient sensors in these jeeps ? …. I believe there’s one in the intake that we all seen and the other one near the Grill . Is that correct ?
@JeepSheepTV
@JeepSheepTV 8 ай бұрын
If there is, I haven't seen it. Are you sure you remember seeing it on the YJ?
@shychi7772
@shychi7772 3 жыл бұрын
Will this help woth a 23 code? Already bought 3 IAT
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
It is really hard to say without know what else is going on. If the IAT's are dying due to oil or something else in the intake then maybe. Otherwise if you have replaced the sensor more than once for the same issue it is likely the problem lives somewhere else in the system. I would check wiring for shorts. Doing this mod could help you determine if the wiring is the problem or if something is going on in the intake manifold, but I would not consider it a solution to a 23 code.
@barrymcelhaney190
@barrymcelhaney190 2 жыл бұрын
the temp sensor tells the computer to richen fuel air mix when it's cold start. if you fool the temp you will run rich all the time?
@JeepSheepTV
@JeepSheepTV 2 жыл бұрын
I tried to do that recently but haven't had success yet. I have heard of others being able to do it though.
@renecadena907
@renecadena907 5 ай бұрын
Where would you locate this sensor if you have a cold air intake and don’t have a stock air box?
@JeepSheepTV
@JeepSheepTV 5 ай бұрын
Somewhere in the intake tube
@renecadena907
@renecadena907 5 ай бұрын
I was thinking that but I don’t know if it would be best before or after the CCV. What do you think?
@yourafatboyshadow
@yourafatboyshadow Жыл бұрын
What if you have a cold air intake? Is there a method for this?
@JeepSheepTV
@JeepSheepTV Жыл бұрын
Same method just punch the hole somewhere in the intake piping.
@yourafatboyshadow
@yourafatboyshadow Жыл бұрын
Thanks man I'm going to give it a shot.
@davesogn3329
@davesogn3329 3 жыл бұрын
Well you just don't put it somewhere in the Box you have to put it right where the air is mainly coming in
@mikethompson6065
@mikethompson6065 Ай бұрын
After driving my 95 jeep 2.5 I shut it off and it will not start back up till it's cooled down, so you think moving the sensor could cure the problem.
@JeepSheepTV
@JeepSheepTV Ай бұрын
Seems like a more serious issue but you could try it and see if it helps. Sounds like you have a sensor going bad
@marjoriericciripamontti6432
@marjoriericciripamontti6432 Жыл бұрын
hello, I would like to know about fuel consumption. Is the car getting more miles per gallon or consuming a lot?
@JeepSheepTV
@JeepSheepTV Жыл бұрын
It is vey difficult to answer that accurately. Because this engine is relatively underpowered your MPG can vary wildly based on wind direction, number of hills, number of stoplights, driving habits, and more. I also have a fuel controller that I use for other tuning characteristics so it impossible for me to tell if my mpg has changed based on the sensor location alone. My best guess is that you will likely burn a little more fuel because its no longer starving the engine once the manifold is hot. With that said I think that the affect on mpg is very small compared to the factors I listed above. LOL I have had a change of 8mpg based on wind alone!
@SamGlasser
@SamGlasser 2 жыл бұрын
What brand, and where did you get your hard top?
@JeepSheepTV
@JeepSheepTV 2 жыл бұрын
Oem, originally for a CJ7 and Facebook Marketplace
@deanhalter1509
@deanhalter1509 3 жыл бұрын
I have an 88 yj ......mat sensor/ inlet air temp sensor, are they the same thing?
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
If I'm honest I'm not sure do you know if you have the RENIX computer? It's a different system entirely. Check out NickinTime Films if you do
@deanhalter1509
@deanhalter1509 3 жыл бұрын
@@JeepSheepTV Thanks for the heads up, as it turns out I do have the RENIX and have since ordered the R.E.M from NickinTime. I was wondering for a while there why information was so clouded when I'd look into some of these mods, my Jeep does what everyone elses does when it heats up......it loses a bit of it's go.
@rrobbins4
@rrobbins4 2 жыл бұрын
Any issues with water with the sensor being so low in the air box?
@JeepSheepTV
@JeepSheepTV 2 жыл бұрын
Not really. I also assume that the sensor can get at least a little wet
@rrobbins4
@rrobbins4 2 жыл бұрын
@@JeepSheepTV ah OK going to do it to my YJ...thanks!
@flatroc1
@flatroc1 2 жыл бұрын
I tried this relocation on my 4.0 ltr. 6 cyl. Didn't really notice a difference, but maybe I'm expecting too much. Is there a reason we wouldn't just mount the sensor way out of the way, where the air is cold ?
@JeepSheepTV
@JeepSheepTV 2 жыл бұрын
Hard to say if you will notice much with the 4.0 since it has better power delivery. I have an AFR gauge since I'm supercharged and the more I play with it on a hot day the more I think I can see it adding fuel due to the new sensor location. You still want it to be reading accurate inlet temps just not touching the hot manifold. Probably the best place is right before the throttle body.
@chrispurvis907
@chrispurvis907 11 ай бұрын
I have a 2005 TJ (4.0L); in south Alabama in the summer there is no "cold air" under the hood. In fact it is so hot that you can't touch the hood prop bare handed when it has reached normal op temperature. I have the intermittent "die on the HWY" when I'm hot gremlin and have done several mods to reduce heat soaking (wrapped thermal insulation on the fuel lines, fuel rail, injectors, 2x the manifold heat shield). I replaced the original ASD relay, replaced the PCM, wired in an isolated +5V sub-regulator PS for the CPS sensor, replaced both O2 sensors, replaced manifold y pipes and catalytic converters (all of these have thrown error codes during a heat soak event). The issue of rough starting and idling after reaching normal engine temps (when stopping for gas or at a longgggg red light) was solved by wrapping the fuel lines and fuel rail and installing the DEI heat shield kit. The big heat soak issue that I am fighting currently is the "die on the HWY" when I'm hot gremlin for which I am very willing to try relocating the MAT sensor to the air box - I have had this on my to try list for years but you were the first "Tubie" to make a video of it. I'll set it up so that I can swap between the original sensor on the manifold and the new sensor in the air box. I'll post the results ASAP - not going to take long as it is +99degs and it won't take but 15 minutes of city driving to make it bonk! Thanks for posting.
@DadWorksVA
@DadWorksVA 2 ай бұрын
@@chrispurvis907 how did it work out for you?
@chrispurvis907
@chrispurvis907 2 ай бұрын
@@DadWorksVA I haven’t moved the manifold air temperature sensor yet; I got past the peak summer commute with out a die on the highway event. It manifests as a rough idle when the under the hood temps get above 160deg. My plans are to install a turbo 4” fan on a thermostat to blow directly across the twin mini cats. I have tested this by pulling into the garage after a heat run and using a leaf blower on low speed. With the hood closed and the engine idling the blower drops the temp from >190deg to < 140deg. The idle goes from rough to smooth; so I’m thinking the heat issue causes either the ethanol to boil or engine sensors to go out of range or I have a cracked manifold or any of the combinations above. I flushed the engine and replaced the coolant and. Thermostat last winter; the engine stays at 220 during the heat soak events and is not affected by it. I’m convinced this is an external behavior cause by the heat radiating off of the mini cats.
@thehatefull1761
@thehatefull1761 3 жыл бұрын
I have rich and lean bank 1 after doing this mod.
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
Explain more, I can't remember do you have a TJ? I can't seem to get that kind of data out of my PCM. It certainly changes the AFR, the question is: do you like it? So far I haven't seen any engine codes but my poor Jeep has been in the garage a lot lately.
@eldonmiller955
@eldonmiller955 3 жыл бұрын
Jeep Sheep, at one point I believe I read a post noting a rich condition after this mod. Did you experience such a thing? Are you still happy with this mod?
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
Yea, he got a rich condition code on his TJ. My YJ doesn't seem to throw a code but that could due to its antiquated ECU technology. I do belive it increases fuel usage but I am still happy with it as the gradual loss of power a the engine warms up is gone.
@seanbeyer100
@seanbeyer100 3 жыл бұрын
Why not put header rap on the intake and exhaust manifolds
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
I've already got it on the exhaust header. Moving the sensor is going to produce better results and for less effort and money. That doesn't mean that wrapping the intake manifold is a bad idea, I have been considering it.
@seanbeyer100
@seanbeyer100 3 жыл бұрын
@@JeepSheepTV I say give it a go and see what happens in theory it should help
@tomynoks
@tomynoks 3 жыл бұрын
@@JeepSheepTV What does wrapping do??? Just keep it slightly cooler? Wrap with what?
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
@@tomynoks wrapping the header just reduces heat transfer a little bit. Its basically adding insulation to the exhaust pipes.
@dpitcher21
@dpitcher21 3 жыл бұрын
Why not just wrap the intake manifold. No matter what having the temp sensor as close to the head as possible would give you the best fuel mixture created by the ecm. In air conditioning systems the coils are normally less than 3in wide and that has the ability to change air temp up to 20 degrees what do you think would happen traveling through the intake manifold.
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
Keep in mind air conditioning systems utilize phase change special fluid to change temp as much as possible so the systems are not quite equivalent. However you make a good point that being near the head will give the most accurate reading. In this case I'm recognizing that the ecu takes that reading and then adjusts for best emissions, I want to favor power over emissions so I'm actually trying to trick the ECU a little bit. I also feel that the placement of the sensor may not have been optimal right out of the factory as you can see that many other cars locate them in or near the air box.
@dpitcher21
@dpitcher21 3 жыл бұрын
Got it I understand where your coming from. Yes tricking the ecm would produce more fuel to be injected producing a little more power. But would also lead to more fuel not efficiently being burned off creating more build up in the engine. The only way I can see this being used beneficial is if you did this and a bigger throttle body at the same time. Then pray that our guess of the increase in air from the throttle body and tricking the ecm to think more condensed colder air is entering the cylinder are equivalent. Otherwise I just see an increase in build up and some short lived o2 sensors.
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
@@dpitcher21 I do have a bigger TB, header, and a fuel controller. My plugs used to come out looking really lean so I've been doing a lot to add fuel. I'm working on using the controller and wide band to tune it just the way I want. The issue I kept having with the previous sensor location was consistency. I would come off the highway and suddenly I had less power and a rough idle. That no longer happens with the new sensor location.
@thehatefull1761
@thehatefull1761 3 жыл бұрын
Deffently changes the fuel ratio. I'm getting rich bank 1 but she seems to like it. Runs like a scalded dog
@tomynoks
@tomynoks 3 жыл бұрын
Any reason why this wouldnt work if you locate the sensor on the air intake tube just above the trottle body?
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
No, I assume that would work the same
@tomynoks
@tomynoks 3 жыл бұрын
​@@JeepSheepTV PERFECT!!! As an option and possible benefit: Relocating to the intake tube just above the throttle body doesn't require any soldering! The existing connector will reach. Just locate the sensor just above the throttle body. I drilled a hole using a 1/2" drill bit, threaded the sensor in and RTV'd both inside and out. I think my 4 banger will hit 80 now. When I bought it last month, it would barely do 60. Just FYI- I have seafoamed the crap out of it, swapped a 4.0L throttle body and spacer, bored the intake manifold to match the 58mm TB and now this easy FREE mod! ALso, just want to add, you can buy a 12" or longer wiring extension for this sensor on eBay for $12 in case you prefer to locate it on the air box but don't want to solder. It's FREE or CHEAP!! From the JEEP SHEEP!! Btw...I've looked all over for my own Jeep Sheep and cannot find one....any advice??? :)
@tomynoks
@tomynoks 3 жыл бұрын
I suppose a small threaded plate or even a nut of sorts inside the intake tube to thread the sensor into would be better than just RTV. If the RTV doesn't hold up, I will do that.
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
@@tomynoks Lol my wife made my Jeep sheep. we may have to make a few more and put them on the store. We do have stickers now however. Jeepsheeptvstore.com
@tomynoks
@tomynoks 3 жыл бұрын
@@JeepSheepTV OH wow!! I was thinking Jeep made those (or branded) back in the 80s or 90s...
@hlekimosima8542
@hlekimosima8542 2 жыл бұрын
IAT sensor is ment to adjust timing according to temperature..the motor might detonate because you are basically fooling the sensor to read cooler air . Reality being the fact that the motor might still pull in air much hotter than the sensor is reading....you can get away with this by using a higher octane fuel
@fredclements6843
@fredclements6843 Жыл бұрын
I’m gonna put a ford 300 i6 in mine I’m sick of it!
@Geonious
@Geonious 3 жыл бұрын
Nice Mod. 22:59 As an Italian American I would prefer to hear the term "Italian Swine" instead of "Guinea Pig" to ensure you don't "offend" anyone. Too many butthurt cry baby people in our country these days. JEEP LIVES MATTER!!!
@tomynoks
@tomynoks 3 жыл бұрын
I think it would be 100% appropriate just to call his Jeep the Jeep Sheep...
@fredclements6843
@fredclements6843 3 жыл бұрын
THE 2.5 SUCKS!!!!!!!!!!!
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
Lol welcome to the channel
@fredclements6843
@fredclements6843 3 жыл бұрын
@@JeepSheepTV I’m putting new 4 holes in as we speak
@JeepSheepTV
@JeepSheepTV 3 жыл бұрын
@@fredclements6843 fun. Let me know if you need any help. My contact email is on the channel page. Good luck!
@fredclements6843
@fredclements6843 3 жыл бұрын
@@JeepSheepTV 10 4
@fredclements6843
@fredclements6843 3 жыл бұрын
@@JeepSheepTV I got my little Jeep on my channel
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