2000 Toyota check engine light po171

[@truthteller2983]

You, Sir, are my hero. P0171 in my Celica... only got as far as a MAF sensor replace before I found you. You saved me hundreds. I love you, thank you.

[@JosephGodzzilla]

LOL, I replaced the radiator a month ago and could not find the vacuum leak code P0171 was indicating. Found your video and sure enough I had those two plugs switched. Thank you very much Kevin Minor!

[@gagekelley8760]

This video just helped a TON. Thanks man i appreciate it. All i got is the scanner that tells you codes and can erase them lol. Cars running much better and no engine light yet. Thanks 👍👍

[@MrCharromax]

after$1500 dlls on parts,we repaired with this procedure,thank you (some street mechanic replaced my radiator and connected those harness wrong blue with black and black with blue. thanks

[@kevinminor2558]

I am really glad this video helped someone. This kind of thought process was taught to me by my friend and mentor. Paul Danner. AKA Scanner Danner.

[@victorruiz7347]

Hey Kevin that’s a great video you’re the first person addressing this problem on the P0171 thank you

[@mactiangco]

This helped me save cash and unneccessary parts replacement. Thanks a lot Kevin and keep up the good work!

[@LD9user]

Just fixed my car. Been chasing this since I bought it. Thanks!

[@ScannerDanner]

Really cool Kevin! Excellent thought process. I'm glad to hear that you're doing well.

[@VictorSanchez-rx1ze]

Wow thank you. Small things like this goes over our heads

[@PatricioHarris718]

My Celica has been sitting in my driveway crying for a few months because I couldnt pass smog AND I had the SAME CODE! Im gonna check this out this weekend for sure!

[@spitgame]

Holy shit I think this just fixed my "leak"! will update after further testing. Thank you for this diagnosis!

[@LeonTiry]

What was it

[@adangochez8400]

Sir thank you 🙏 so much for your help your my man you save me a trip to the mechanic I was having the same problem as you I replace the air filter and I wrongfully connected the hardness wrong wow thx so much sir I’m subscribing to your channel now

[@condomanager5259]

but where do you find mechanic's like that? I'm amazed at how quickly they just want to throw parts (it's not their money). Whenever I ask about troubleshooting or what they did, I get blank stares. No one knows squat anymore. Out here, that Celica own would be in $500 of new parts and labor and three shops prior to finding issue. I paid a shop for 'diagnosis' mainly because I wanted smoke test to prove no vac leak, they supposedly did it and just said 'need MAF sensor.' I had already tried TWO with no luck, so now I'm stuck with no help and running out of ideas - no vac leak, no performance issues (no hesitation or rough idle), I'm going to read the trims, since I'm now fixing this myself since I find no competence anywhere.

[@reddemon52]

I hope my problem is fixed when I disconnected the same house you did mine did not have the suction as strong as yours but mine was like a sputtering but could feel air in. Went to junkyard picked up the piece switched it out disconnected the house and nothing . My solenoid was going bad faulty. Thanks to your video I did not change out the intake manifold gasket. Which is what people say to do. Thanks for video

[@Ashroyer86]

lo and behold you fixed it without spending a dime (besides several grand on that nice scanner). Nice job.

[@vsenarma]

Excellent diagnostics....Mines were plugged up incorrectly also

[@cloudaround]

Can’t believe you found that. Champion!

[@albertvargas1839]

Thanks for this video it really help me !

[@jamesbryan7036]

I swear if this is the problem i have been trying to figure out for ages ima be pissed xD thank you for this video dude i tried a cold air intake like 2 years ago i bet i mixed them up.

[@kochishki]

After 7 years, this helped a lot and I feel stupid, that I messed the 2 connectors 😅😅

[@sherpadelgatos]

wow im gonna check my celica right now. same issue p0171. gonna see what color those connectors are

[@Evanknowsall]

Thank you so much man!

[@chipstowe2490]

Same thing happened to mine and I was wondering thanks this video fixed my problem

[@pierretessier1682]

Very good troubleshooting!

[@beameron]

This code has so many meanings to this engine, intake manifold gasket, wrong plugs, leaking hoses, broken/dirty airfilter, aftermarket air intake that causes problems, broken/dirty maf sensor, etc.. For me it was just a dirty MAF sensor, cleaned it with a little brake cleaner and blew it dry. It fixed everything lol (after changing my intake manifold gasket, obviously -_-)

[@jasonrodriguez6721]

Thanks for this!

[@angelaracino6236]

Great diagnoses

[@fortworthdallashomeinspect4531]

great job figuring this out!

[@kevinminor2558]

Thanks a lot. I've come a long way since then I just don't shoot too many videos. I'm too damn busy making money.

[@fortworthdallashomeinspect4531]

@@kevinminor2558 I wish I had your problem of making too much money lol😀

[@yomama241]

Is there any diagrams I can find to where I can put the blue cap back on not sure where it goes

[@alsstewart8583]

Any one got any idea wtf is up with my toyota avensis 1.8vvti 03 hatch??? Starts drives stops, but when in gear thiers a flapping noise?? And its not pulling as it used to, it goes In n outta gears ok, engine revs fine with power, told it mite b coil pack ignition stick,,, changed thm,, still no difference,,, any help advice would b appreciated🙏

[@DavyDiag]

Nice find!

[@azmathazmath7652]

.h

[@azmathazmath7652]

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[@azmathazmath7652]

,,,

[@azmathazmath7652]

,,,

[@azmathazmath7652]

,,,

[@royamontadar]

The only thing i can say here...your smart

[@thomasedwards3372]

To many beers that day right. Plug things in right next time.

[@heyitschinoable]

Wow very good video man.

[@beexiong2171]

it still could be anything lols im stuck on this p0171 check engine light code too i replace the spark plugs and clean the MAF sensor but the engine light still came back on next couple days lols...

[@djsaber7160]

hell yes life saver !

[@caiomendes4799]

My was the ignition coil I bought generic brand from EBay doesn’t work well and replace for original Toyota Denso work great....

[@kevinminor2558]

That has nothing to do with this video

[@kevinminor2558]

An ignition coil will not cause a po171 code

[@Crnigruja]

You are the man, I spend days on internet and on mehanics, read all values from OBD and I didn't know why long and short trim on my new buy car are too high. Someone must reverse those two conectors, now when saw you video I checked and swap them, my longt and short trim are normal, almost 0, only thing that bother me now are low readings on MAF like 1.85 g/s and low RPM about 680. Is there any advice that you could gave my, my air filter is new, throtle body is cleaned, iac valve also, maf are cleaned with maf spray cleaner, I had kn filter, with that RPM are little better around 720, but still low MAF reading about 1.9 g/s and o2 sensor voltage is same like now jumping from 0.1 to 0.7. Thank for help man

[@kevinminor2558]

Those are normal readings on the maf. Rule of thumb liter size should be close to g/s at idle. So 1.8l should be around 1.8g/s you're good. Never use k&n

[@Crnigruja]

@@kevinminor2558 Sorry for late replay. In meantime I remove kn and put basic paper filter. Do u have any advice or reccomendation for high flow filter does not oild like kn?

[@kevinminor2558]

@@Crnigruja You don't need high flow air filter. I won't do anything to a computer controlled engine.

[@reddemon52]

I had the 2 hoses switched.. had them connected on opposite inlets.. no wonder my car was acting weird

[@ollib2007]

hi Kevin nice video. i have same car. same code. i also have a code b0101 for failing clock intermittent. but this p code you have is what concerns me n ow. mine only comes on at higher speeds and once or twice at lower speeds. when i turn the car off it could go away for days without coming back. but it will come back. no work done on this yet. can you help?

[@desertheatkicksgee]

Hello, I have a 2000 camry 2.2l with high postive long term fuel trim at 20% at idle, but at higher rpm it drops to 5%, but I cannot find a leak, would a exhaust manifold or intake manifold leak would cuase this? I also have do NOT have check engine light on.

[@kevinminor2558]

You have a vacuum leak. Have the engine smoke tested to find leak.

[@desertheatkicksgee]

@@kevinminor2558 I swapped out the upstream 02 sensor, air filter, oil change, couple of bottle of Lucas upper cylinder cleaner, valve cover gasket and tube seals. Throttle body cleaned. My gas tank is about 18 gallons and I only get about 210 miles city . That's about 12-13 MPG.

[@kevinminor2558]

@@desertheatkicksgee Horrible gas millage. Does the engine actually run on all four cylinders?

[@desertheatkicksgee]

@@kevinminor2558 yeah i have no misfires and swapped out spark plugs to NGK iridium.

[@Bane92]

Got my head gasket repaired 97 4Runner cost me $1300. After getting my car I still had check engine lights. Same code 171 lean. He told me to bring it back in and did some tests with the fuses and voltage and said those are fine. But I’m getting a vacuum leak near the head (I can’t explain exactly where ) but he sprayed it with some kind of spray and the engine would shake a little more. He said $150 to change the part and it might not solve my issue. I need help.

[@jeroen7699]

He tested the intake manifold gasket for leaking. When he sprayed some brakecleaner on there, the idle changes, because the alcohol is sucked into the intake. So yes, the intake manifold is probably leaking at the gasket. If this was the initial problem, then the headgasket replacement perhaps wasn't needed... I would have a ferm talk to your mechanic if I were you. Good luck.

[@rudycastaneda9109]

Check your coils or if you got misfire

[@hightttech]

Nice one 👍.

[@heyitschinoable]

So the wires were just switched?

[@kevinminor2558]

heyitschinoable Yes

[@yateswebb]

is that the purge control valve?

[@kevinminor2558]

It is. Connectors swapped causing purge valve to remain open causing a vacuum leak. And code p0171. Crappy video but it helped a bunch of people.

[@jimcress888]

my 1993 toyota camry 4 cylinder engine is getting 13 mpg, fuel is too lean, does anyone know what parts to replace for great mpg's again, i already replaced oxygen sensor

[@mazda3mike]

jim cress get a new car 😂

[@rudycastaneda9109]

O2 sensors

[@alvinnotice7985]

Good job Kevin!

[@miequipoatlas01]

Once you , disconnect the blue conector and connected the black connector , what should I do with the blue connector ? Where it supposed to go ?

[@haleccigodoy]

Did you ever figure where the blue one goes ?

[@MMMmyshawarma]

Blue controls VSV for Air Intake Control. Basically there is a flap in the airbox that closes and opens to meter air flow at different rpms and lessen noise, using vacuum from a small tube coming from the intake manifold.. If you're going to remove that butterfly valve, or not using a stock airbox and running SRI/CAI, there is no use for it, just leave the blue connector off and plug the tube that comes from the intake manifold.

[@timothytimlin6804]

Wondering when you were going to stop calling it a vent solinoid

[@juanrodriguez-ry6yt]

vent in back purge up front

[@EdGlez100]

Hello Kevin Awesome I have the same car and is running too lean I disconnect the same part in the video and every time I accelerate is better is not chucking like when the thing is connected what do you think is the problem I disconnect the hose that you disconnected in the video but is ok is not open sounds ok what is the name of that part where those hoses are connected and should I replace it ??? Thank you

[@kevinminor2558]

Check for vacuum leak. This video is not for your issue

[@kevinminor2558]

This video only applys when someone plugs in the harnesses wrong.

[@geogonzalez104]

On the air intake there are two places for hoses a small one and a bigger one The big one is on top of the small one there is a hose on the small one the big one is open and is sucking air I can't find a hose for it it right next to the part his working on anyone have any idea of what I am talking about and knows what hose is supposed to be there?

[@kevinminor2558]

Post a picture

[@geogonzalez104]

@@kevinminor2558 not sure how to do that it only gives me the option to comment?

[@kevinminor2558]

Upload a video to KZbin and post it in the comments I'll take a look

[@martinalbert5653]

So someone worked on the car previously and accidently connected two connectors wrong. WOW

[@DougHinVA]

let's wait while the device initializes and he sighs impatiently...

[@JCLEE2023]

So basically the blue and black wiring were plugged in the wrong places? And boom. Problem solved? Might have to go check mine now because I bought a new MAF and its still telling me this code.

[@kevinminor2558]

Yeah the problem is the plugs are exactly the same they're right next to.

[@kevinminor2558]

Just get the color coding right

[@breckfreeride]

Damn kids and their cold air intakes, plugging in crap where is isn't supposed to go

[@Rome7869]

so just because the solenoid was blue doesn't mean the blue connector goes into it?

[@kevinminor2558]

rome seveneightsixnine No blue to blue black to black. It was reversed.

[@Rome7869]

Kevin Minor .....cool thanks, im dealing with a 03 corolla, my neighbor replaced the o2 sensors. intake gaskets

[@carlobelmonte7250]

Sir!!! I have toyota MRS 2000 with 1zz engine, my engine light turns on after 10-15mins idle/driving, I'm also experiencing misfire in my muffler, I have the same error code P0171, what should I do? I don't trust the mechanic here, he's just also searching in internet how to fix P0171, I'm just afraid of spending money to replace every parts that might cause P0171.

[@kevinminor2558]

Do you have a exhaust leak?

[@vortex1628]

@@kevinminor2558 i have the same issue but i have a 2ZZ in my celica, and when i get on a road to hit the car, when i get to about 80% throttle i have a cut off and the engine just doesn't climb rpms and it stutters, no matter the rpm or gear, ~80% throttle i lose power Would that still be a vacuum leak?

[@vortex1628]

@@kevinminor2558 also i have no cat or muffler, my exhaust ends like halfway down the car, its how i bought it

[@sameernawaz3353]

help me plz my camry 2000 where is the switch of computer

[@clintonr60]

That's why the VSV below is blue the the one on top is black 💡genius! You must work at Tires Plus 😂

[@haleccigodoy]

where did blue go ?

[@ElectricMilesLLC]

you and I have the same pic kindof.

[@JosephGodzzilla]

Blue connector goes to the blend door for the air cleaner,

[@topherd1011]

P0420 will probably stay there ... if not... owner is lucky asf. Who knows how long that was like that. I would be SUING whoever switched those connectors if indeed it ruined my cat.

[@kevinminor2558]

Lean conditions will not ruin a cat. Rich conditions will ruin a cat. Unless it's lean enough to cause a misfire. In this situation it was not causing a misfire. It was only causing positive fuel trims which set a po171. And the car never had a PO420 after repair was done.

[@williewest2370]

Get a strap to hold your camara on your forehead or on your chest I bought those cuz I'm going to start making videos also I have made a few doing them holding the phone but its hard

[@kevinminor2558]

Thanks. I need to do more vidz I have good case study all the time. I just need better vid equipment

[@C1sc0M4n]

This could have been a 3 minute video

[@kevinminor2558]

I would love to see some of your diagnostic videos for an example

[@hened911]

I think you might be a genius, but please, for the love of God, stay away from cameras.

[@yamabina9557]

Fak of if you want shots video be ready for this

[@Ben-Hawy]

If you take your car to Sun auto, or Jiffy Lube they will switch out these plugs so they will keep stealing your money from you