P0171 Trouble Code: System Too Lean Bank 1 Diagnosis and Repair!

[@rogieboy3162]

Thank you for this video. I was diagnosing a 2000 tacoma v6 with p0171. Long term fuel trim was up to 33% on load at 3k rpm and evens out at idle. Your video helped me narrow it down to a faulty MAF after checking for fuel pressure and vacuum leaks. You are much appreciated.

[@KITS_Auto_and_Truck_Repair]

@rogieboy3162 My Pleasure! I'm glad to hear that the video was helpful

[@williejohnson9045]

You have a gift of explaining things with simplicity,don't change.Thank you so much.

[@KITS_Auto_and_Truck_Repair]

Willie Johnson My Pleasure! I appreciate it!

[@dinhas9398]

Think the same here!!!

[@DanielBruce-mb9lk]

🎉 31 31:11 :11

[@DanielBruce-mb9lk]

31:11

[@DanielBruce-mb9lk]

31:11 🎉

[@55peterf]

The best explanation and diagnostic for this code I ve seen.

[@KITS_Auto_and_Truck_Repair]

@55peterf Thank you!

[@mkay8627]

finally…someone who takes the time to explain the code reader and what the values actually mean. Thanks. I have a 2007 vibe running too lean and this diagnostic really helps. Thanks again!

[@KITS_Auto_and_Truck_Repair]

M Kay My Pleasure! Thanks

[@teriipearson5331]

You are a professional ASE Tech. You are what all Techs should be like. Honest. Never upsetting. Just good to the core. I wish I can find an honest shop that determines what needs to be repaired and helps out if its an easy job and not upselling.

[@KITS_Auto_and_Truck_Repair]

Terii Pearson Thank you!

[@dinhas9398]

You sir is what we can call a master mechanic, you have a way to explaining things that make sense and walk us through it, and testing and why. You have me waiting to watch more. Thanks for helps us learn! Don’t change!!!

[@KITS_Auto_and_Truck_Repair]

Lidia Santos Thank you very much! I appreciate you!!

[@tomthumb3085]

Very well explained in a way that non-tech owners can understand and, more importantly, fix on their own at little or no cost. Thank you for sharing this Jem.

[@KITS_Auto_and_Truck_Repair]

@tomthumb3085 My Pleasure!

[@isaacfletcher3799]

Mini un

[@isaacfletcher3799]

Unni

[@ohenry4834]

The Smoke Test really helps a lot, the basic and simple way of trouble shooting the problem accurately. rather that spending parts while doing trial and error. It really helps alot in saving money. Thanks alot.

[@KITS_Auto_and_Truck_Repair]

@ohenry4834 My Pleasure!

[@michaelhoward4020]

I have been chasing the po171 and po 325 knock sensor code. The vehicle i am restoring is a 98 Nissan altima GXE. I had a po440 and a po 1138 i believe. I replaced the evap hose's. And that fixed the evap codes. I am now tracking down the massive vacuum leak. The short term fuel trim is + 20 to 25 percent. The long term is and stays about 10 percent. I changed the 02 sensors map and maf sensors. The fuel trims on the road is totally normal indicating a vacuum leak. I changed those sensors as maintainance because of the car age. The PCV and intake bellows are next suspects. This was a good video.

[@KITS_Auto_and_Truck_Repair]

@michaelhoward4020 Thank you! Good luck with your project!

[@melaniopimentel6189]

Thanks again body, nobody explains and troubleshoots like you, very sample to understand for DIY, I suggest you to open a teaching shop, I’ll be your first alumni, but unfortunately you are little bit to faraway from me, but your videos are a masterclass to learn. Thank you thank you.

[@KITS_Auto_and_Truck_Repair]

@melaniopimentel6189 My Pleasure! Thanks

[@dougunderwood1412]

Thanks for the simple explanation without using unnecessary and confusing terminology. You were a big help with diagnostic info I can look for using my equipment. Keep up the Great work ! 🎉

[@KITS_Auto_and_Truck_Repair]

@dougunderwood1412 My Pleasure! Thanks

[@southbayla3137]

A 30 minute video isn’t a simple explanation

[@Willmorrs]

It's 6am I'm watching this.. I work on Benz primarily and got a camry with this code. Your information was great I will apply this diag to the camry to help me . Thank you

[@KITS_Auto_and_Truck_Repair]

John Smith My Pleasure! I'm glad to hear that the video was helpful!

[@CHISELCHIPPER68]

That was one of the many codes on my 2003 Chevy Express 3500 LT. Had a permanent MISFIRE also for years. Just wrapping up an reman engine swap that i got from AutoZone and discovered some bolts on both my exhaust manifolds were broken clean off and there was lots of carbon residue on the sides of the engine. I'm assuming i was sucking air at this point. Before this discovery I changed spark plugs, plug wires, ignition coils and O2 sensors to no avail. Even did a live scan one time and one of the O2 sensors were pulling 0.015 v. Oh. The engine never went into closed loop. EVER. I'm a driveway mechanic so i learn a lot of things the hard way. Thank you for your video, you Kind Man. SUBSCRIBED!

[@KITS_Auto_and_Truck_Repair]

CHISEL CHIPPER 68 My Pleasure! and welcome to our youtube community!

[@likits1999]

Sir, youre a great instructor. Your explanation of the fuel trims helped me fix my vacuum leak. It was the fuel injector O-rings causing my bank 1 to go lean. I replaced the O-rings and my fuel trims are now at 4.7 and 4.7. No more dash light. Thanks again sir!

[@KITS_Auto_and_Truck_Repair]

likits1999 My Pleasure!! and thank you for letting me about experience, I'm glad to hear that the video was helpful!!

[@chrisdelgado3530]

I have both - P0420 and P0171 don't know. This video was amazing!!!!! Thank you!!!!!!!!!!

[@KITS_Auto_and_Truck_Repair]

Chris Delgado My Pleasure!! I'm glad to hear that the video was helpful!!

[@kensmithmail]

Excellent video, I have learned so much from this, you are a professional and did it all with a camera in one hand, so as the saying goes you could do this job with one hand tied behind your back !!!👌👌

[@KITS_Auto_and_Truck_Repair]

@kensmithmail Thank you!

[@robertqman5751]

I agree with other comments about your ability to explain the scan tool data. Very logical and understandable explanations. Excellent .. now a subscriber.

[@KITS_Auto_and_Truck_Repair]

Robert Qman Thank you! and welcome to our youtube community!

[@foxwithtubesox1075]

This was a simple method, with clear explanations of your rationale behind every step. Thanks for uploading. It gave confidence that the issue I'm facing with my truck is a vacuum leak. I'm about to make a DIY smoke machine and trace the problem spot.

[@KITS_Auto_and_Truck_Repair]

Fox With Tube Sox My Pleasure!! and Good Luck with your Truck!!

[@Andriig75]

I got a home made smoke machine. I use it every day, if you know what I mean 😂😜👍

[@kingstar5570]

@@Andriig75 hooka !!?

[@abubakarisadiqueibrahim481]

Your explanation is so simple to even the lay mans understanding. Thanks you are a good lecturer keep it up.

[@KITS_Auto_and_Truck_Repair]

Abubakari Sadique Ibrahim Thank you!! I appreciate it!

[@faustogonzalez8397]

Thanks for your video. Obviously there was a vacuum leak at the PCV hose connector. I also think there are additional problems. I would put a fuel pressure gauge to monitor fuel pressure a idle and at load. In addition. a fuel injector "drop test" to monitor for clogged fuel injectors. My concern was as you increased RPMs past idle, the positive LT FT started increasing. Also , the MAF sensor seemed Skewed a little in the positive direction, as mentioned at idle with a 1.8 L engine MAF should read ~ 1.8 G/s. Also, I would recommend an oil change to the customer since the high fuel trims may have fuel to the engine oil. Once again thanks for your video.

[@KITS_Auto_and_Truck_Repair]

FAUSTO GONZALEZ Thanks for your input!! There was no need to check all of those components since the fuel trim numbers got better after fixing the vacuum leak at the PCV tube, I like the idea of doing an oil change afterwards!!

[@MagicHandDrawingandElse]

Dude, this video should have millions of views, I just learned something that you don't in the school, today, valuable information. Thank you so much. Bless.

[@KITS_Auto_and_Truck_Repair]

Elmer And Liz Gonzalez My Pleasure!! Thank you!!

[@jorgenunez7826]

Excelente su ilustración. Super agradecemos ese aporte. Muchísimas bendiciones para usted y su familia.

[@KITS_Auto_and_Truck_Repair]

Jorge Nuñez Thank you!

[@edsanders5479]

7:00 PM Pacific standard time Los Angeles…Another great training video by our favorite technician!!!

[@KITS_Auto_and_Truck_Repair]

@edsanders5479 Thank you!

[@lf6145]

You had me on the edge of my seat wondering what you'd find 🙂and I don't even have this issue. Well done and explained

[@KITS_Auto_and_Truck_Repair]

@lf6145 Thank you!

[@2bereal4sure]

Thank you for giving a detailed education on the P0171 code. I now wished I could fix it on my own.

[@KITS_Auto_and_Truck_Repair]

Tiaja Fletcher My Pleasure!

[@adamissah452]

You're the best that's why I'm always learning from you

[@KITS_Auto_and_Truck_Repair]

@adamissah452 Thank you!!

[@TheMrchris1234]

K diagnostic thanks for such an informative cool video, you are truly a professional tech with excellent diagnostic skills, my years in automotive as a SAE certified tech back in the day was filled with learning as much as possible so I could be the best tech possible just like you, another way to check for vacuum leaks due to lean running is to use propane gas around the engine as it's running, when you hit the spot where the leak is the engine will Rev up high as long as you keep the propane gas in that spot, we used to do that in the 80's to find vacuum leaks. Love the Video and your expertise, much respect

[@KITS_Auto_and_Truck_Repair]

TheMrchris1234 My Pleasure! and thank you for sharing the propane method of finding a vacuum lean!

[@TheMrchris1234]

@@KITS_Auto_and_Truck_Repair just remembered something else, the EGR Valve is only suppose to open during open throttle and when cruising but at idle it's suppose to close so it doesn't make the car run too lean, but the symptoms would be that the car runs fine when cruising but would shut off at idle cause the EGR valve would stay stuck open and lean out fuel system at idle...don't know if that's a problem with the cars nowadays with all the new technology and computer controls

[@KITS_Auto_and_Truck_Repair]

@@TheMrchris1234 Yeah! Thanks for sharing!

[@TheMrchris1234]

@@KITS_Auto_and_Truck_Repair I had my nephews 2007 corolla towed home, I scanned it and got this same lean code , I found no vacuum leak but I took 3 spark plugs out and found the plug tips soaked with oil and combustion chamber has oil in it on 3 cylinders, 4th cylinder and plug is dry, didn't do compression test yet but what could it be?..the combustion chamber suppose to be sealed so how can oil soak tip of plugs and get into chamber? Rings? Head gasket? If it's real bad he's just gonna get a new car but I just wanted your expertise on this.

[@KITS_Auto_and_Truck_Repair]

@@TheMrchris1234 it's either defective piston rings or leaking valve guides!

[@2ndbase330]

K you did an excellent job...my car has the same error minus the P420(the cat was replaced a year ago) The PO171 is something new I hope once I clean the MAF, That ista a simple vacuum leak that can fix!! Thank you

[@KITS_Auto_and_Truck_Repair]

2ndbase My Pleasure!! Good Luck with your project !!

[@rafiekahmed8568]

Hi K Du thanks again for a great demonstration on how to trace and repair fuel trim problems you’ve been very practical and to the point I’m learning a lot from your videos and very impressed with yoy Autel thanks again and be safe

[@KITS_Auto_and_Truck_Repair]

Rafiek Ahmed Thank you!! I'm glad to hear that you're enjoying the videos!!

[@seunfire]

I literally followed ur diagnostic procedures and it worked for me thanks brother

[@KITS_Auto_and_Truck_Repair]

seun jason My Pleasure!! I'm glad to hear that the video was helpful!!

[@nutflushdrawkoh]

This video is the best and most comprehensive one I have viewed on KZbin.

[@KITS_Auto_and_Truck_Repair]

Timothy Surowka Thank you!!

[@gemini291]

I have the same car and it has the same problems and it had a crack at the same place in the hose. Guess I need to get me one of them smoke machines. Great job on the video and explanation. I like to work on my cars, but the issues I run into are usually the first time for that issue so I need a lot of details which you provide. Thank you.

[@KITS_Auto_and_Truck_Repair]

@gemini291 My Pleasure!

[@davidmotley4207]

Excellent video which actually made sense to a beginner with good communication.

[@KITS_Auto_and_Truck_Repair]

@davidmotley4207 thank you!

[@Josh2024Garcia]

Best video I’ve seen on auto diagnostics. Good job . Unfortunately this video didn’t help my p0171 code but I definitely learned something new

[@KITS_Auto_and_Truck_Repair]

@bigjaydog08 Thank you!

[@kalfranklin1313]

😮 I just want to stop and say how crazy good this video is you explain this I thought nice educational teacher. I haven't got the whole grip of the concept yet but just the best I have seen a mechanic video someone's explaining step-by-step in a real simple form that a child could probably learn this is really good sometimes I do my video and I know what I'm saying but at some point I start to get in my head like I need to rush

[@KITS_Auto_and_Truck_Repair]

@kalfranklin1313 Thank you!

[@kw686]

great video i am diagnosing wifes vehicle was already looking at a smoke machine... very useful

[@KITS_Auto_and_Truck_Repair]

K W Thank you! Good luck with your project!

[@lesliwells5433]

VERY GOOD VIDEO, LOVE ❤YOUR ATTITUDE, KEEP UP THE GOOD WORK 👍🏿, MAY GOD BLESS YOU AND PROTECT YOU ❤❤❤

[@KITS_Auto_and_Truck_Repair]

@lesliwells5433 Thank you!

[@lesliwells5433]

@KITS_Auto_and_Truck_Repair IT'S A doggy dog WORLD out there,some smiling faces are dangerous, just PRAY 🙏🏿 ,Stay cool,calm, LET GOD DO the Work

[@michaelbezos2969]

Excellent video. Being an I/E Journeyman I know good troubleshooting using diagnostic equipment together with "experience". Great job. Kinda wish I had your scanner & smoke machine. Folks need to know why cost of repairs are high. Equipment & experience are worth the money. Easter egging expensive part are not the road to travel. Again, thank you for video. Subscribed!

[@KITS_Auto_and_Truck_Repair]

@michaelbezos2969 My Pleasure! Thank you!

[@michaelbagulboc1898]

will try this method in my car simple explanation. You have a gift thanks for this vedio.

[@KITS_Auto_and_Truck_Repair]

Michael Bagulboc Thank you!!

[@nathanderibe9230]

A very good mechanic. Thanks for sharing good knowledge

[@KITS_Auto_and_Truck_Repair]

@nathanderibe9230 Thank you!

[@luisespinoza3193]

very well description of the problem and better the way to find out how to resolve the issue and best the way to fix it

[@KITS_Auto_and_Truck_Repair]

@luisespinoza3193 Thank you!

[@SantosAlvarez-df8dg]

I had the same issue with a lexus rx300 but I sold it Thanks for the information.😊

[@KITS_Auto_and_Truck_Repair]

@SantosAlvarez-df8dg That's too bad, Thanks

[@davida2043]

May be a dumb question but at 14 minutes you pumped on the brake pedal to make the O2 sensors react. Hiw does that change the readings of the sensors. You have the best explanation of the trouble codes online, simple and very clear. Thank you.

[@KITS_Auto_and_Truck_Repair]

@davida2043 My Pleasure! when you pump the brake pedal on a car that has a vacuum operated brake booster, the booster causes the engine to run lean, because air on the other side booster chamber will enter the vacuum chamber

[@davida2043]

Got it! Thank you so much. Keep up the great videos.

[@raymondng3139]

Great teaching, clear and helpful. Very good and knowledgeable.

[@KITS_Auto_and_Truck_Repair]

raymond ng Thank you!

[@robvernon]

Brilliant tutorial, thanks - most helpful in finding and fixing P0171/P0174 fault on my Toyota Camry 3L V6 (2000)

[@KITS_Auto_and_Truck_Repair]

Rob Vernon My Pleasure!!

[@sollykhan2385]

AWESOME, video, Thank you so much for your kind honest and simple walk through, if only 'other' so called techy's would get half as good as you, Sir, i salute you, please keep posting more, LEGEND, 😇

[@KITS_Auto_and_Truck_Repair]

Solly Khan Thank you! I appreciate it!

[@sollykhan2385]

@@KITS_Auto_and_Truck_Repair i am seriously 'disturbed' i want to know why you have only 21.9 subscribers?? you should have at least 4 BILLION !! and everyone on this planet who are so called 'Mechanic/ techy's should have 'viewed this video at least 40 times,,, a day !! 🙂KEEP UP THE GREAT WORK, BROTHER 😎😇👍

[@KITS_Auto_and_Truck_Repair]

@@sollykhan2385 Thank you! That's so kind of you!

[@LALOJUMP4U]

YOU ARE AN AWSOME MECHANIC I REALLY LIKE YOUR VIDEOS .....KEEP UP THE GREAT WORK YOU DO

[@KITS_Auto_and_Truck_Repair]

@LALOJUMP4U Thank you!

[@gustavomartinez324]

No criticism here u have great strategy for fixing things keep it up

[@KITS_Auto_and_Truck_Repair]

@gustavomartinez324 Thank you!

[@mayken6661]

Explained for even the shadetree mechanics ! 👍 great video

[@KITS_Auto_and_Truck_Repair]

MayKen Thank you!!

[@diogenesabel3409]

​lo p se wd😊

[@tenengetienne9454]

Excellent work thanks for helping us know how to diagnose and read fault code

[@KITS_Auto_and_Truck_Repair]

@tenengetienne9454 My Pleasure!

[@naabligay9542]

I was fining it difficult to read the diagnostics on the screen, because light on your diagnostics screen was not bright. Apart from that everything is well explained and understood.

[@KITS_Auto_and_Truck_Repair]

@naabligay9542 Thanks!

[@billydo5376]

Thank you so much for your video your explanation is very good and a lot of detail. Make me to be able to understand more about motor mechanical problem

[@KITS_Auto_and_Truck_Repair]

Billy Do My Pleasure!! I'm glad to hear that the video was helpful!!

[@joshuaberriors4681]

This was insane!!! I appreciate the detailed work you did. I’ll update my review and let you know what happens. 👍🏼 I have a P0171 code.

[@KITS_Auto_and_Truck_Repair]

Joshua Berriors My Pleasure!! Sounds good!

[@mayken6661]

So what was it ? I get my CEL on my Tahoe just about every time I park and allow it to idle

[@marthab4172]

What caused your p0171 code , did you figure it out and fix it? Thanks.

[@marthab4172]

What caused your p0171 code ? Thanks.

[@ilias5925]

Thank you man how well you explain things

[@KITS_Auto_and_Truck_Repair]

@ilias5925 My Pleasure! Thanks

[@NoOdL3z18]

Thanks for the video, I'll definitely check my MAF sensor, O2 sensor and intake hoses and see if I can fix the problem.

[@KITS_Auto_and_Truck_Repair]

@NoOdL3z18 My Pleasure!

[@yoda55555]

You are the best mechanic youtuber. Thank you sir.

[@KITS_Auto_and_Truck_Repair]

Yoda I am My Pleasure!! Thank you!

[@adilfatah9129]

Professional. Experience. And smartness. 👍

[@KITS_Auto_and_Truck_Repair]

Adil Fatah Thank you!!

[@lndcrsr1971]

Great video and explanation of how to read and understand scantool.

[@KITS_Auto_and_Truck_Repair]

@lndcrsr1971 Thank you!

[@MrPostman013]

Good morning, I have watched a lot of videos and you're by far the most informative 👍, thanks man God bless

[@KITS_Auto_and_Truck_Repair]

MrPostman013 My Pleasure!! Thanks!

[@jeffboyd8129]

Thanks, after watching video I think I have a vacuum leak in my 2006 Ranger Rover Sport. I will take the necessary steps to make sure that is the problem. I will keep you posted on my progress.

[@KITS_Auto_and_Truck_Repair]

Jeff Boyd My Pleasure! sounds good!

[@tonedriverss8629]

Excellent work . Much appreciate your time and expertise . Very well done .

[@KITS_Auto_and_Truck_Repair]

@tonedriverss8629 Thank you!

[@jzflsrtis300]

Thank you for a great tutorial. You are a great mechanic

[@KITS_Auto_and_Truck_Repair]

Luis Davila My Pleasure!! Thank you!

[@alblume3374]

Great video. Logical, step by step diag. I had never seen anyone force the engine lean by pumping the brake pedal. I will use that. Thanks!

[@KITS_Auto_and_Truck_Repair]

AL BLUME My Pleasure! Thanks

[@masterofnone7846]

Like ur channel !Keep bringing different situations n issues with different approaches in your diagnoses!! Like I said before, ur a technician, not a Parts CHANGER!

[@KITS_Auto_and_Truck_Repair]

@masterofnone7846 Thank you!

[@steveriddle928]

Thank you for your video! You helped end my frustration with my check engine light. I had the same problem. Thank you again. Awesome video.

[@KITS_Auto_and_Truck_Repair]

Steve Riddle My Pleasure! I'm glad to hear that the video was helpful!

[@smartman123]

very clean straight to the point thank you so much sir 👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻👍🏻

[@KITS_Auto_and_Truck_Repair]

@smartman123 Thank you!

[@juniorblack9089]

Great Video thank you so much I was able to diagnose the issue with my Camry after watching this video.

[@KITS_Auto_and_Truck_Repair]

@juniorblack9089 My Pleasure! I'm glad to hear that the video was helpful!

[@garfieldshirley4263]

Thank you very much, this video was a lot of help. I am having the same issues. I drive a 2004 Toyota Corolla altis.👍🏿

[@KITS_Auto_and_Truck_Repair]

garfield shirley My Pleasure! I'm glad to hear that the video was helpful!

[@petergachuki1491]

K diagnosis thank you for this great video clip I hard the same issue today after viewing I had the clue where the problem was

[@KITS_Auto_and_Truck_Repair]

Peter Gachuki My Pleasure!! I'm glad to hear that the video was helpful!!

[@TherdBuddhist]

I like the way you present the problem.

[@KITS_Auto_and_Truck_Repair]

@TherdBuddhist Thank you!

[@yvonnekolmann7453]

YOU ARE GOOOD BROTHER 😊! KEEP UP THE GOOD JOB! GREATINGS FROM EUROPE

[@KITS_Auto_and_Truck_Repair]

@yvonnekolmann7453 Thank you! Hello

[@tkatnokia95]

Thanks for a really professsional diagnose of that data from the engine.

[@KITS_Auto_and_Truck_Repair]

Xxx My Pleasure!

[@danieldupont939]

That's good, everything you did made sense. That's obvious the cracked PVC hose.

[@KITS_Auto_and_Truck_Repair]

Daniel Dupont Thank you!

[@Goshi0Mac]

One of the best KZbinr videos I've seen till date 👌... even better than most of the well known names out there. I have the same car and I'll use your method now that you walked me through it. Very good job.

[@KITS_Auto_and_Truck_Repair]

Disco'valency Thank you!! I appreciate it!!

[@Goshi0Mac]

@@KITS_Auto_and_Truck_RepairThank you!✌ I was able to get my Check engine light off 👍the next day using your technique. I have an autel scanner but never realized what the numbers meant till your video.

[@KITS_Auto_and_Truck_Repair]

@@Goshi0Mac My Pleasure!! I'm so glad to hear that

[@Mghanabro]

One of the best diagnosis video deserve million hits I have AF sensor 4V this means leans mean more air or less fuel So the STFT and LTFT are low and when I add they are nearly 0 The post Cat oxygen sensor is like 0.9V constant when I rev up it starts jumping here and there Any ideas mate what is happening I have checked the fuel pressure it was in limit Cleaned the injectors Using techstream for diagnosis

[@KITS_Auto_and_Truck_Repair]

@mikmik7033 what code do you have in memory and how low are your fuel trim numbers at idle!

[@Mghanabro]

@@KITS_Auto_and_Truck_Repair Thanks there is no code what I notice B1S1 is like 4V should b 3.3V LTFT 9% STFT 3% I will upload the idle and 3000 rpm data

[@Mghanabro]

I have run the odb tool 0n idle and 3000rpm but I am unable to upload here

[@bartscave]

Another awesome video! I’m surprised that the rear O2 never really started switching after it warmed up.

[@KITS_Auto_and_Truck_Repair]

Bart Young Thank you!!

[@precool]

Awesome my friend. Thank you! I’m troubleshooting my Mini Cooper S. Running strong but similar codes. I’ll check for leaks. PCV tube is kind of a brittle plastic. Thanks again.

[@KITS_Auto_and_Truck_Repair]

Jeffrey Daitz My Pleasure! and Good Luck with your vehicle!

[@precool]

@@KITS_Auto_and_Truck_Repair I had a bad intercooler charge pipe. Loose and had a hole. Axe murderer now! What a difference.

[@KITS_Auto_and_Truck_Repair]

@@precool Ah ok!

[@MampsUK]

Excellent video you explained it very well. I look forward to watchin more videos and learning more from you 🙏

[@KITS_Auto_and_Truck_Repair]

@MampsUK Thank you!

[@robjohnson8493]

Thank you for putting this video up. Diagnostics is such good info! 👍

[@KITS_Auto_and_Truck_Repair]

@robjohnson8493 My Pleasure!

[@daleinada4306]

Excellent analysis! With great explanations! Keep making the videos! Thank you!

[@KITS_Auto_and_Truck_Repair]

Dale Inada My Pleasure! Thanks!

[@sulemanhabib1743]

K D u make my day , very good explanation video, May God blessed you, now I staydy learn numbers and rich numbers very well. Habib Auto

[@KITS_Auto_and_Truck_Repair]

Suleman Habib Thanks my Brother I'm glad to hear that the videos have been helpful

[@kukupulus2949]

What are the signs and symptoms of this code P0171- system too lean (bank 1)? What will be the likely problem or issue with the vehicle with this code? Thanks. Great tutorial ❤❤❤

[@KITS_Auto_and_Truck_Repair]

Kuku Pulus Thanks! your fuel consumption is gonna increase and your catalytic converters will fail prematurely

[@anthonyv92]

wow! what a great video, i feel like i learned so much and i will definitely try this as i just got the P0171 code on my 06 corolla as well

[@KITS_Auto_and_Truck_Repair]

Anthony Valverde Thanks! and good luck with your vehicle!!

[@aymw9259]

Thank you so much Sir, I like you filming this video and letting us see your OBD2 code scanner and explained what might cause the car problem. And you Showing us how the Smoke machine function. I subscribed your channel.

[@KITS_Auto_and_Truck_Repair]

@aymw9259 My Pleasure and welcome to our youtube communitty!

[@ja-wj9qy]

You the Man ...you solve My problem thank you 10 million times ...🌷

[@KITS_Auto_and_Truck_Repair]

j a My Pleasure!! I'm glad to hear that the video was helpful!

[@ThePavasolster]

Gran video, gracias es de mucha ayuda, las explicaciones muy claras!

[@KITS_Auto_and_Truck_Repair]

Pablo Vargas Thank you!!

[@noelelnolo9642]

Excellent video. Wish I could take my Camry to your shop!! Same code.

[@KITS_Auto_and_Truck_Repair]

Noel elnolo Thank you!

[@olaolot1517]

Wow.. Thank you so much. Honestly , You are just too good in your field. Plus one follower today...

[@KITS_Auto_and_Truck_Repair]

Ola Olot My Pleasure! I appreciate it and welcome to our youtube community!

[@Mr18Chapin]

Excellent video. Always thank you for sharing your knowledge with us.

[@KITS_Auto_and_Truck_Repair]

@Mr18Chapin My Pleasure!

[@zaatarsumac9364]

K you are doing great job explanation the logic bebind the auto components . thanks

[@KITS_Auto_and_Truck_Repair]

Zaatar Sumac My Pleasure!

[@ibrahemawd]

good diagnostic and good explaination but I see the downstream O2 sensor reading is good and you dont need to replace the catalytic converter

[@KITS_Auto_and_Truck_Repair]

Ibrahem Awdalla Thank you!! The cat was defective!!

[@edperry2956]

Thank, you make easy to understand how it works.

[@KITS_Auto_and_Truck_Repair]

@edperry2956 My Pleasure!

[@SquirrelsForAll]

Great video, exceptionally helpful and very well explained. Thank you for sharing!

[@KITS_Auto_and_Truck_Repair]

SquirrelsForAll My Pleasure!! Thank you!

[@pkaranja3541]

Very thorough. Awesome work.

[@Zoidschica]

Very nice video explaining what all those numbers mean. I have that same code. I cleaned the mass airflow sensor but code is still there. So on to the next thing to check lol

[@KITS_Auto_and_Truck_Repair]

Zoidschica Thanks, and good luck with your project!!

[@richardjeanpierre9265]

Good stuff good stuff boss man I really like the way you explained and fixing it great teacher

[@KITS_Auto_and_Truck_Repair]

Richard Jean pierre Thank you!!

[@LateefAriyo]

I love the video,and I have learned something new. Thank you very much

[@KITS_Auto_and_Truck_Repair]

@LateefAriyo My Pleasure!

[@jeffgrantIS350]

Very informative information to say the least!! I'm experiencing the same codes with my 007 Lexus IS350. P0173 and 4. And the P0420 catalytic converter is below specific. I wish I could send you my Blue driver data information.

[@KITS_Auto_and_Truck_Repair]

Jeff Grant Thanks!

[@jesusaparicio9485]

One of the best videos, congratulations !!

[@KITS_Auto_and_Truck_Repair]

Jesus Aparicio Thank you!

[@stephenzies8867]

Great Diag. And Repair Sir. 👍

[@KITS_Auto_and_Truck_Repair]

@stephenzies8867 Thank you!

[@kennethmorris519]

Very informative and great detail. Thanks helped me out a great deal.

[@KITS_Auto_and_Truck_Repair]

@kennethmorris519 My Pleasure! Thanks