Toyota 4Runner 3.4 Random Miss-fire P0300, P0305...~Miss-fire Ghost~ Fixed!

[@rivdeez0464]

You have the wrong spark plug stock is a dual electrode

[@robertclark2714]

I have 2 third generation 4Runners and a 1996 Land Cruiser (Lexus LX450) The Land Cruiser has over 500,000 miles on it. One of the 4Runners has over 300,000 miles on it. Preventative maintenance is the key to their longevity. I also installed transmission coolers and took the transmission line off the radiator to avoid the dreaded" Strawberry Milkshake". I do all my own repairs except alignments. If you have not replaced the 4Runner lower ball joints then put it on your "to do list". Best vehicles I have ever owned.

[@lukeboudreaux8781]

You give me hope. I just bought a 2002 4Runner and did some work at the mechanic. Drove it 5 hours to work and 45 min before making it, it had a misfire. I’m not a mechanic so Im overthinking this a lot. The light went away after some more driving (IM NOT A MECHANIC, didn’t know) I kept driving because it sounded normal still. I even start it up now and it still sounds normal. Im wondering what the issue is/was. I just bought a scan tool to see what’s up with it. Any advice?

[@TRIBAL-mb4tq]

I have the same year. Did this get rid of both codes? I can't pass smog because of this issue. I'm just thinking is changing everyone and spark plugs too.

[@deanlhouston]

My 4Runner is a 2001, and there's a sticker in the engine bay that explicitly says to use dual electrode type spark plugs. I don't know if that is only 2001 and 2002, but you say yours is a 2000 year model, and probably very little has changed on the engine from 2000 to 2001. Might be worth it to switch spark plug types to the dual electrode type in the long run.

[@jameswatt4694]

I 100% only use dual-electrode Japanese plugs and still have the factory "Must Use XXX Plugs" sticker on my 2000 3.4l Limited.

[@Velcrostraps91]

Great video. But doesn't this engine call for the dual prong plugs. Wouldn't that be your problem?

[@FixingWithPassion]

Not that i could fine.

[@jeremyledbetter8022]

My owner manual says the dual prong plug for my 1999 4Runner.

[@jerryk1525]

Absolutely the 5zv-fe calls for dual prong plugs. Good catch.

[@ktcopyguy]

I found green corrosion where the plug goes into the coil…. Cleaned, conductive greased, all good hasn’t popped a code in 5 years. 2001 Tacoma with the 3.4

[@FixingWithPassion]

Nice!

[@jordainian8]

Dual electrode plus are recommended.

[@FixingWithPassion]

Yea

[@mr.sunnyrise1571]

But iridiums are better and don’t offer dual electrode model

[@jordainian8]

@@mr.sunnyrise1571 then do what I would do and use dual electrodes like the Yoat brand recommends guy. There’s a reason there is a pic of what plugs to use on the timing belt front cover. Just use em and be done.

[@lukeboudreaux8781]

You give me hope. I just bought a 2002 4Runner and did some work at the mechanic. Drove it 5 hours to work and 45 min before making it, it had a misfire. I’m not a mechanic so Im overthinking this a lot. The light went away after some more driving (IM NOT A MECHANIC, didn’t know) I kept driving because it sounded normal still. I even start it up now and it still sounds normal. Im wondering what the issue is/was Thank you for your walkthrough.

[@FixingWithPassion]

O my!

[@lukeboudreaux8781]

@@FixingWithPassion any ideas?

[@montgomerybojangles8644]

My truck has a misfire in cylinder no5 I'm currently jobless and its -16c outside lol I'm waiting for the weather to warm up and hopefully I can pull my plugs and clean them and that fixes my issue. I really can't afford for it to be anything else. Thanks for the video

[@FixingWithPassion]

Good luck!

[@xLUKENSTEINx]

Great vid! My obd is only telling me 0300, being random or multiple cylinder misfire...any suggestions other than purchasing a new one and swapping them out individually?

[@xLUKENSTEINx]

Also, it starts and idles great... Issue seems only when engine 'wants' feel... While accelerating/demanding power (when meeting an incline or accelerating from a stop)

[@SlinkyRQ]

@@xLUKENSTEINx im having the same problem right now, mine is for cylinder 2 and 3 im gonna start pulling it apart today, im assuming its wires or spark plugs if they are opposite banks

[@markcrawford8876]

How many miles at point of issue?

[@stevenskuba5270]

well instructed video on how to test compression and point of elimination process

[@smokeandmirrors482]

My coils had corrosion where the plug wire meets the coil. Replaced both and all good

[@FixingWithPassion]

Nice!

[@xtrchessreal]

5VZ-FE in 2000 Toy 4 Runner uses Denso dual electrode K16TR11 spark plugs from Factory. All you did was move things around and it repaired itself, you say? Hey maybe it was dropping the plug into the spark plug posts, yeah you could have shortened the (wrong) spark plug gap there, maybe that was the fix? The only thing that was valuable to viewers was showing them to test the compression of the cylinder. Even so you were losing compression slowly - if you took time to notice. Shouldn't that be pressurized air tight? Oh maybe the PSI meter was faulty, so that showed what exactly? You pointed out that the two coils Marked OEM Toyota were the ones that were replaced and the one with who knows what marking was the original. You seemed so confident and you left out the part when you swapped the coils - but did you though? All I saw was the end where you claimed it was all fixed now. Even a blind dog finds a bone now and then. To other viewers this video shows how this man works on his vehicle and that is about it. Please use best practices and resources for your own vehicles. The spark plug wires should be tested for resistance tolerances, the rubber boot and wires should be inspected for cracks or weak areas where the spark may have been jumping to vehicle ground and not reaching the plug, or diverted from the plug. Proper spark plugs for the vehicle is essential in these modern cars that have computers. If there was a faulty coil in this video it wasn't diagnosed nor shown to be swapped as claimed and a misfire due to the coil would have followed the coil to the new cylinder from 5 to 3 or 1 or which ever one he put it in. The 5VZ-FE engine is arguably the best engine of modern times from Toyota. 250k to 500k and higher miles are common but not without proper care along the way. This video did not show proper care and best practices though it attempted to - it fell short.

[@deanlhouston]

The cylinders are not air tight like you're describing. Its normal for cylinder pressure to bleed down slowly. But if there was a problem, the cylinder would never have reached 140 psi. But to properly check cylinder pressures, you should test all of them so that you know what pressure each cylinders is making, that way you can spot if one or more are off, even if the pressure seems reasonable at first glance without that reference.

[@jeffsnyder5456]

I would say that only the cylinder 5 coil was replaced not the other 2. No sticker because it wasn't a Toyota coil.

[@FixingWithPassion]

Scotty is pissed!

[@BF-27]

True. The 2 on the right (cylinder 1 and 3) have OEM coils. The coil he pulled without the label is a Duralast coil from Autozone as indicated by the “D” logo on it.

[@jtru8077]

I changed plugs, wires, and my cylinder 5 coil but I am still getting the p0305 code? Any suggestions?

[@arechj]

Get a mechanic's stethoscope or screwdriver and listen to the fuel injector on cylinder 5. Chris Fix has a good video on this. I have the same code. About to take all injectors to MotorWest Performance in Chatsworth for testing/servicing.

[@thepitpatrol]

@@arechj if it is intermittent miss I can tell you it probably is not the injector. We have had the same problem and we don't know what it is but injectors did not fix it.

[@MichaelTonyp]

@@thepitpatrol did you ever find the problem?

[@williamroman3169]

I HAD SAME PROBLEM WITH NBR 3 ,HAD COIL#3 BAD, CHGD COIL FIXED PROBLEM

[@victor7260]

Is this the same for a 4 cylinder

[@360ikki]

Hi my friend, my 4runner 97 has the same problem, misfire, i just need to replace the coil?

[@wolu9456]

NO! Ivan.You might get lucky WHat you need is a coil BOOT *ABOUT 5Ish bucks a piece. *you will not see any discoloring or burn barks on the rubber boot which just pulls off the coil pack no problemo* try that first. I had a friend whos u-joint was coming off his axle That's what it felt like in the 4-runner (possible multiple boot failures.(HONESTLY you can't see)

[@alneg6234]

I have an issue with #2 misfire, I replaced plugs, wires, coils and the problem is till here. The strange thing is that I have no misfire at first start, I drive for about 10-15 minutes. go to market, drive back with a misfire. It happened a few times. I suspecting the fuel injector, I will use a cleaner in the gas tank and see if this is it. anyone went thorough this?

[@walktheline5115]

sees two coils that say toyota on them, and one random coil with no tag, thinks that both toyota tagged coils have been replaced and one old one was left in.. I would think the previous owner had a problem with the 5 cyl, and replaced the factory tagged coil with an aftermarket one. 2 tagged factory original coils , one after market

[@FixingWithPassion]

Sees me fixing it...and fixed it.

[@MichaelAllen731]

@@FixingWithPassion That one coil has absolutely been replaced before.. The toyota tag is the original label on the original coils. That cyl 5 coil is a cheapo auto parts store coil, ive replace two of mine with 378,000 miles and the original ones all had the toyota tags on them.

[@winnerwinnerchickendinner8809]

Probably by resetting the coil and spark plug

[@RegisteredNurseLA]

can i do this if i have coil packs?

[@_No_Bueno]

Yes

[@giordanovoeks9407]

What brand is that Code reader? Where did you get it? how much was it? Thanks

[@alcolavista-22]

Well done…It’s sometimes miss fire when u demand more power going up hill..

[@FixingWithPassion]

Right on!

[@Julianconanhernandez]

Thats whats going on with mine, runs fine when I'm light on the gas but starts to sputter when I put my foot down on it.

[@brendanschroeder1862]

@@Julianconanhernandez what ended up being the issue?

[@bravethewildgaming8139]

Great diagnosis sir!

[@dmironyuk]

Wire most likely, replace it

[@MrTwohunnidpercent]

2 questions, 1 comment. Did you ever find out what it was causing the misfire? Also where are the right side coils located ?

[@DogSpeak]

There are only 3 coils. They are dual coils, all located on the passenger side. If you look at his diagram, cylinders 2.4.6, are on the driver side. Cylinders 1,3,5 are on the passenger side and they have the coil packs. Cyl 1 is connected to cyl 2 via a spark plug cable. 3 to 4 and then 5 to 6. So cyl 1 coil pack controls cyl 1 and 2... 3 controls 3 and 5, and so on. If you're having a misfire code po302, then cyl 2 is misfiring. Start by checking the plug and inspect the wire as well as coil located on cyl 1. Look for burn marks or anything unusual, bad connections. Replace the plug, wire or coil if necessary.

[@scotto3826]

@@DogSpeak That's incorrect. The wires are routed 1 to 4, 3 to 6, and 5 to 2. The cylinder locations are correct. The firing order is 1-2-3-4-5-6. If cylinder 2 is mis firing you'd check the coil on cylinder 5.

[@darrenwebster2862]

It appears to me that the #5 coil was the one that has been replaced, with an aftermarket coil. I’m betting the ones with the Toyota sticker are original to the truck. I’ve never seen a “D” on a factory Toyota coil, like the #5 coil has.

[@macariusfreestyle8521]

@@darrenwebster2862 right exactly. I'm thinking D is for the Denso brand, which are good for Toyotas

[@quest808]

Not revving past 3k rpm. Any idea?

[@jaydyme80]

Plugged catalytic converter

[@quest808]

@@jaydyme80 checked that already. Still the same

[@mistermatsuda]

Check your fuel pressure, maybe a bad fuel pump. Comment was a year ago and is probably fixed. What was it?

[@quest808]

@@mistermatsuda no. Stil the same problem. Some one told me it might be the ecu. I need to find one and try it out.

[@pitchforkpeasant6219]

@@quest808 checking back. Was the problem the ecu or something different

[@guasal12]

This is not the correct spark plug

[@davedeatherage4902]

I'm impressed with you're Toyota 4 runner Nathan. If I hadn't bought my recent Ford , I would have bought a Toyota of some kind. QUESTION: did you leave coils swapped, or back to original places? Engine seems to be a great Duratec! I had a Vulcan in my last Ford, and Duratec now in my new one.

[@FixingWithPassion]

I've done nothing. Swap coils just like the video...still waiting to see if it starts to missing again. Nothing so far.

[@davedeatherage4902]

@@FixingWithPassion ok, thanks, I appreciate you!

[@captiandemocracy]

I have the same codes, gonna try this when the sun comes up. It'd be really nice if this works because the 2 shops I had look at it said it was a valve issue or a evap sys leak😥

[@pitchforkpeasant6219]

@@captiandemocracy what did problem end up being

[@integridad7]

You have to wait until the engine gets HOT

[@FixingWithPassion]

HOT now!

[@StewartDuncanJr]

And then the misfire moves to cylinder 4 and 6. Then what.

[@FixingWithPassion]

Check the intake pressure break force.

[@StewartDuncanJr]

@@FixingWithPassion that's not even a thing. U wouldn't know.

[@CVEIWKID]

Those two toyota coils are original and the other one is ebay probably

[@davedeatherage4902]

Also I may have been mistaken, as I'm learning, ( about you're Toyota being a Duratec engine??)

[@tr4ilblazin]

Is your engine light off?

[@davedeatherage4902]

@@tr4ilblazin No works well!

[@allie2947]

I have been told that I have a misfire on Coil #6 & #1 on my 1999 Toyota 4 runner SR5. But was told by a different mechanic #6 & #1. I have gone to 3 mechanics and they just shake their heads and say I have Cylindar misfires don't know what problem is & provided no solution. (?) I have replaced 6 sparkplugs, coil, wire, mass air flow, & gas cap & 3 hoses. I went last week to another mechanic who suggested a possible solution said engine getting to much air & replaced 2 hoses @ a cost of approx. $500 including diagnostic ck.. I have now pd approx. $1000 for diagnostic tests and labor for replacing these parts (I bought recommended parts upfront except for the 2 small rubber hoses). Yesterday I went to another mechanic & he said misfire on #6 & #3 & says possibly a Compression problem that will cost $3,000 or something else engine related for $5000. What should I do? How come so difficult to detect exact problem?

[@FixingWithPassion]

Wrong Mechanics. I can fix it.

[@mosthated8190]

Before you start the diagnostics make it clear that you want a compression test and the results. If the compression comes back good or ok then you have an issue maybe with the fuel.

[@davedeatherage4902]

QUESTION; I ASKED YOU A QUESTION IN MY TEXT, DID YOU YOU LEAVE COILS SWAPPED? OR BACK TO ORIGINAL PLACES?

[@tobaccyjuice]

Of coarse he left them swapped ..who wouldn't

[@davedeatherage4902]

@@tobaccyjuice ok genius, everyone should be as experienced as you lol , course reality is not everyone is!

[@pitchforkpeasant6219]

He responded to someone else asking same question. He left em swapped

[@G513-y3o]

Bad spark plug

[@ГражданинСССР-б4р]

First off all the spark plugs is wrong. You need another one. With 2 corner. See the manual

[@dangda-ww7de]

I hope you know that is the wrong sparkplug.

[@FixingWithPassion]

it fixed it.

[@HoursFreeAOLsp]

@Adam Buckman my 3.4 is doing the same shit misfires like a sob but has tons of parts thrown at it .

[@freddyflintstoned913]

Taiota? dang boy, you should be fixin a ford.

[@FixingWithPassion]

Dang son.....GSQ

[@pitchforkpeasant6219]

Ive worked on more fords than anything and ive never owned a ford. And im not a professional mechanic either. And I actually fixed 99% of em. 1% internals

[@williambaldwin6576]

you can't drop the plug in there it will change the gap on the plug when it hits

[@FixingWithPassion]

Not dropping it 5 feet

[@pitchforkpeasant6219]

@@FixingWithPassion 😁

[@grahamparker78]

If you hold the gas pedal to the floor the motor will not start. Your welcome.

[@BF-27]

In theory, yes. But mine still starts when I do this trick. Kinda annoying. You can disconnect the fuel pump under the rear seat behind the driver (under the carpet) if you want to crank and not start the engine.

[@toyotaBrad62]

Wrong spark plugs

[@FixingWithPassion]

OK then

[@toyotaBrad62]

Parts houses will sell you the wrong ones, supposed to have dual ground electrodes,

[@davidkimber9710]

That Dave D. Guy has been a loyal supporter of you're channel from almost the beginning. How come you don't answer his simple question? *** about coil swapping? He's always used respect towards you, and several times in last year or so you've disregarded his questions , and that's disrespectful! You can't keep growing with that attitude!!, I'm NOT A TROLL!, JUST ASKING,?you have slot of sins--- but not that many comments to reply to.

[@FixingWithPassion]

Because its almost impossible for me to answers all questions now days! I do what I can, when I can. LOL Try to get a bigger channel to answer any questions! Good luck with that!~~

[@davidkimber9710]

@@FixingWithPassion OK, thanks for you're replying and explaining, no BIGGER channels blow people off, I can understand that, but smaller channels with less Subs I don't understand that, not many replies to respond to---

[@FixingWithPassion]

True. I get 75 to 100 questions a day, some are fake, spam and just plane stupid. Try to weed them out! lol

[@davedeatherage4902]

@@FixingWithPassion ok, but I think Dave's questions reasonable, and for a beginner, and he isn't trolling you, just asking questions. The only stupid question is the one not asked, everyone may not be as perceptive and learned as you.

[@davedeatherage4902]

@@FixingWithPassion Dave K. Reference to

[@skatertrash4205]

Pupl the head boy quit playing

[@user-hr7ze1mg8w]

Useless video… jiggle some wires