Check Engine Light VSC TRAC Fix For Lexus GX470 GX 470 Easy Fix Repair Common to Toyota also

This is a specific fix for a common issue that got me quite worried initially. I’m not used to a Traction Control and VSC light coming on for a gas cap issue, but I guess in this car it’s common and the fix is a bad gas cap! This is the video showing the error codes I got and how many miles it took to fix it.
Also this SUV sits here and there, and it sat unused for about 2 months when I broke my arm recently. So the low voltage issue was because it was truly low battery voltage, and as we all know low battery voltage can trip other errors, which is what tripped the computer error and the ABS error. Those codes are gone now too!
This video was filmed using:
Camera: GoPro Hero 7 Black
Editor: iMovie
Music by (if any): EpidemicSound.com
Disclaimer:
This video is for entertainment purposes only, it is to document what I have done. This video may contain descriptive language expressed by me of products or services, those are solely my opinions and feelings and should be taken as nothing more than opinions and feelings. This video is not to be used to take the place of any instructions, guidelines or legal standards and code. If you use any of the information in this video for any reason you are doing so solely at your own risk and I will not be responsible for any way you use the information in this video nor do I guarantee any particular result. No information contained in this video is intended to or shall change the terms of this disclaimer.

[@cheryllee8944]

I went to Napa Auto Parts to purchase a new gas cap. The store staff assisted in checking the engine code for a restart, and afterward, the lights were fixed. I am thankful for the help, which I learned about by watching the KZbin video.

[@WolfRanger2008]

Thank you. I especially appreciate that you demonstrated that the error may not immediately clear but will resolve within a certain time frame.

[@alexsystems2001]

Thank you for the comment. I tried to show every step. Some people still didn’t follow it and they say “I had the same lights and I just put a gas cap on, the light didn’t go away”. Then I ask if they read the codes and they say no. They go get the codes read at a local auto parts store and find out they didn’t have the same codes and then they wasted the time and money on a new gas cap. I hope it helps you!

[@hamdymohtaseb2789]

Excellent help,I just tightened the gas cap and that’s it. Thank you so much. It saved me a trip to the mechanic and money I’m sure

[@SilverShrimpTX]

Had same issue with my 03' Lexus LS430, this worked like a charm! Thanks!

[@dequervains]

Thank you so much. Took about 200 miles of driving, wasn’t sure it was gonna work but $18 gas cap fix the problem. Thank you. 2006 GX470. Gas cap seal was very stiff as well and was coming off very easily before replacing it

[@richdilorenzo8145]

I received my cap and I am VERY HAPPY and GRATEFUL to say that after about 3 short trips and about 100 miles the LIGHTS ALL WENT OFF!! Thank you so much. You probably saved my about $250 if I had kept my appointment at the local garage. Thanks very much

[@bethbruffey4840]

$15 Gas gap solved issue for 2008 GX470...awesome!...saved time, and typically hassle. Keep the great videos coming, thank you again.

[@alexsystems2001]

Beth Bruffey that’s awesome to hear! Thank you for the comment. It’s still a fix for me, been on a couple road trips and everything.

[@anthonypascarelli9560]

Beth and Brian Bruffey how long did it take for the lights to turn off?

[@oliverhartman1830]

My 05 4runner had the same issue and similar miles, it was the gas cap, thank you and keep posting.

[@user-fh4rc6xu7g]

Out of town, we had this problem (after stopping for gas)…typed in problem & was connected w/you on 2nd attempt. Thank you for your place in our world. Lights off now😁🙏

[@jcmojzis]

Same mileage same issue and very accurate fix. Thanks a lot.

[@mosesokalo4752]

Please help my car has VSC light on and the 4wd on how can I remove

[@TheMcs33]

Try replacing gas cap

[@TheMcs33]

Check abs throttle body and sensor under gas paddle

[@LiseandRobsTravelAdventures]

Congratulations on your 1000 (plus a couple thousand more) subscribers. Well Done!

[@albertcampos959]

Just subscribed because your video worked!! Cost me a 15 dollar gas cap. 210 miles later, I guess it reset itself and no more lights, thank you!

[@alexsystems2001]

Albert Campos that’s fantastic news! I’m glad it helped.

[@martymeyer4125]

This is a common issue with all Toyota and Lexus vehicles. Probably get more hits if you add that to your title, if possible. Well done.

[@cocaleaf2371]

Subscribed!!!! Keep em Lexus GX470 videos coming. Thanks for sharing!

[@alexsystems2001]

Reglazetech Oregon thank you very much for the positive comment and the subscribe! I have one coming up soon. My GX at a stop feels like it’s being bumped from behind lightly sometimes. It sounds like its a common problem. I’ve read greasing the universal joints on the drive shafts helps or fixes that problem. I’m going to try it and try to document it for KZbin.

[@junevutran3986]

Thank you so much. The gas cap replacement fixed the issue.

[@nahnisjourney1406]

It worked for my 2004 Scion xB. Just wish I had seen the guy’s video before I went to the dealership and paid $44.91 for a new gas cap. I waited for 5 hours for them to tell me that I needed a new gas cap. The other gentleman cleaned his gas cap gasket and put it back and it was fixed. Plus he explained that you have to hear the proper number of clicks when you put the gas cap on. Then turn the car off, wait a few seconds and turn the car back on.

[@lisac8082]

Thank you so much! Going to give it a try!

[@kimchee94112]

Late Toyota Camry with the same trouble lights but different P0990 code (transmission fluid pressure). Funny how both check engine and traction lights came on at the same time. Thanks for the video, subscribed.

[@David-vg1wl]

Thank you! I had the same issue, it took nearly 84 miles before clearing. I had my doubts, after a fill up, five miles later, it cleared-coincident, maybe. Thank you again.

[@shootermcgavin4999]

This just happened on my 2003 GX with 118k miles. Going to get a new gas cap and see if that fixes it. I subscribed. Thanks for your time man.

[@alexsystems2001]

Shooter McGavin thank you for the comment! I hope it works well for you too. It’s an affordable place to start.

[@SadisticallyOptimistic]

Did this work for you? I’ve replaced my fuel filler cap before and still having the same issue. It’s a small plastic piece that’s cracked below/around the fuel filler cap. Supposedly an expensive fix since the whole fuel tank has to come out...

[@lollyj6981]

Thanx a million$ Same issue with my 2007 RX350. I took it to Auto Zone and the prognosis was the same! Gas Cap!! Now I know what to do next!!🤗🤗

[@alexsystems2001]

Thank you I am glad it helped!

[@sygo11]

Those lights were on my Tundra and it ended up being because my coolant was all gone! I filled it up, disconnected the negative terminol on the battery for more than 10-minutes, and it worked!

[@alexsystems2001]

Thank you for your contribution. Those lights can mean a whole bunch of things. That’s why I showed reading the codes too. I’m glad you figured out your issue you were having.

[@tanorewilson707]

Same issue with my 2006 thank you so much👍

[@davidnewman6722]

Great video. I have the same issue with my wife's GX470 2008, before spending money on a diagnostic, I will replace the gas cap. I liked and subscribed.

[@alexsystems2001]

Thank you for the comment, I strongly recommend reading the codes before you just go buy a gas cap, that’s why I showed what codes I got, if you don’t have a code reader you can usually go to most chain auto parts stores and they can plug in a code reader and get your codes for you for free that way there is no money wasted. I hope that helps!

[@wesleymorgan3234]

This worked for me. Thank you so much for putting this out there!!! Mine is a 2006 GX470 with 207,000+ miles.

[@alexsystems2001]

Awesome to hear! I am glad it worked, these GX’s are amazing cars, it’s cool to see you have gotten a good amount of use from yours.

[@mindmatters5610]

My 530i did trigger check engine light when the gas cap was not replaced correctly, My GX with VSC lighting up, I noticed my gas cap was just off...thanks to the gas attendant. its a 2005 my best bet is a new gas cap.....Thanks for the post. I subscribed to your channel.

[@alexsystems2001]

Mind Matters thank you very much for the comment, let us know if the gas cap does the trick! Thank you for the subscribe as well.

[@stevetrippe6715]

Thank you so much a simple gas cap fixed my problem!! Thank you!!

[@ronaldjones9429]

My Lexus VSC and TRAC Off came on for the first time yesterday and I was concerned. After watching your video I'm going to replace my Gas Cap to see if that works. I just subscribed to your channel and thanks for that information

[@alexsystems2001]

Thank you, but please make sure to actually read your codes before you do. If you don’t have the same codes this probably won’t work. Most auto parts stores will read your codes for free. I’d never want to just replace parts. I hope it helps.

[@samdaif7251]

I have the exact issue , I'm definitely gonna try this solution , thanks , subscribed already :)

[@alexsystems2001]

Sam Daif thank you very much! I hope it works.

[@babuthomas8611]

Thank you. It was excellent and I hope more people subscribe to your great video(s). I wish you well

[@alexsystems2001]

Thank you very much.

[@jamesrat7110]

Thanks for the helpful video!

[@rey1164]

Great video thank you for your service!

[@lexuses3942]

4.96k subscribers now lol I think you made it 👏🏼

[@alexsystems2001]

Thank you!

[@stepangolovash9737]

Amazing info! Same car, same year, same issue. Will see if it needs same solution :) Liked and subscribed!

[@alexsystems2001]

Thank you for the positive comment! I really hope it fixes your issue too, I recommend reading the codes first though to help pinpoint it. Cheap quick fixes sometimes are the best place to start. Thank you for the subscription as well. Let us know how it works out for you.

[@esamahmad4276]

السلام عليكم

[@Paiadakine]

So I got these lights. Watched you vid. Twisted the gas cap tighter, seemed loose. On Thursday evening. Drove home. Friday drove to the store and back still lights. Sat no driving, sunday got gas and the lights turned off during the drive home. Thanks for the tips.

[@ennisgunns]

Best video on the subject. My gas cap is on its way. Only $18 for the Toyota OEM with local pickup. Thank you.

[@alexsystems2001]

Thank you, I hope you scanned your codes and it’s the same codes as mine.

[@ennisgunns]

@@alexsystems2001 I had the evap leak code but it went away. However the vsc issues persist. Are all VSCs accompanied by a dtc? I'm getting a transmission code p2757 but I don't think it's related. That's a solenoid issue. Gas cap is a guess. Someone has been been tampering with things. The plastic shield is missing and the area has a lot of caked dirt. The o ring looked sound but I didn't feel it, and I saw what appeared to be hardened lubricant or sealant in the area.

[@acuralee]

I hope this works for my 06 Acura TL, I have the same lights on and after you mentioned the gas cap I checked mine and it too seemed super easy to take off. I’ll be visiting Acura tomorrow lol my foxwell NT630 gave off very similar codes as your scanner did…

[@muayadaldarraji3428]

Thanks man. I've subscribed as well.

[@belgicaalcantara5291]

Wowwww amazing I’m going to try this my mind was getting crazy thinking about it 🤗Than you ☺️

[@alexsystems2001]

I hope it works, make sure to check your codes, some people don’t do that and their check engine light is on for a different reason and they get bummed that it didn’t work. Most places like autozone often will check your codes for free.

[@belgicaalcantara5291]

@@alexsystems2001 thank you Mister for the answer I totally understand, and thanks again because I don’t even have a idea about autozone does that for free🤞☺️ I’m brand new try to learning figure out problems in my car.😊😊😊

[@danemiller1242]

I bout a 2005 GX 470 about two weeks ago and saw these same lights on, previous owner didnt care too much for vehicle so i got it for s decent price, it needs work, just saw this video , went and check the Gas cap, or gas crap in my case , looking forward to changing it today , respect and big up, i hit like and subscribe.

[@alexsystems2001]

Dane Miller thank you very much for the like and subscribe! Please let us know how it goes for you. KZbin is awesome when there is an exchange of ideas and information. I really hope it works for you! I encourage everyone if they don’t have a scanner to pop in at an auto parts store that offers free code reading and make sure it’s an evap code which is what I had that would lead me to believe it is a fuel cap.

[@nahnisjourney1406]

I lost $45 at a local repair shop before I took it to the dealership. The local shop tightened my old gas cap and after a few days the lights were back on again. Then the owner reset the codes, but the lights came back on again after a few days. After that, I called the dealership and explained it to them. They told me to bring it in. I paid $44.91 just so I could wait for 5 hours and get a new gas cap. SHAMEFUL! But I’m glad nothing serious was wrong with my car. This is my second comment about my 2004 Scion xB gas cap issue. I will share this information with my friends and family in case they have the same problem. Thank you.

[@airborneranger-ret]

Kudos to you for buying local. :) Subscribed and liked

[@josesoliz3278]

Great video!

[@bichngocnguyen8780]

I bought a cheap gas cap from Auto zone, it fixed the problem after driving around few days. But the engine light , VSC on again. After watching this video, I went to the local Lexus dealer, bought a genuine gas cap for 34.99 plus tax. After install the cap, push the ignition button engine light, VSC just disappear just like magic. Just like the gas cap and fuel tank entrance can sense each other.

[@honkeyness9427]

Subscribed. You saved me a trip to the mechanic

[@alexsystems2001]

I’m glad it worked for you

[@obumnemeokoli4447]

Thank you so much, this worked on my 2006 GX470 and saved me a lot of money.

[@iftinchanneliftinchannel682]

Thank you so much your video help me and save money

[@josiego3081]

Thanks I'm going to try it now

[@marklongoria3975]

just bought my lx 470 and it threw up the exact same thing for me. i might have to get a new gas cap :/ nice video !! thank you (-:

[@alexsystems2001]

mark longoria I hope it helps, please follow up let us know if it worked for you or what worked for you. Did you hook it up to a code reader? If you don’t have one, places like auto zone and such will read the codes for you I believe for free.

[@MrFrazor]

I appreciate ur vid bro thx

[@jakealazruei3444]

Nice video, you should do more Gx470 videos!

[@alexsystems2001]

Jake Alazruei thank you for the comment! I will do more as things break but these trucks are pretty well built. I have one planned soon, nothing broken, but just a PM of sorts and an experiment. Who knows maybe I’ll do a little off-roading video too.

[@ruqaishiify]

Thank you and I have subscribed

[@easyone007ify]

Good job thanks

[@bludika]

how the dealer charges $45+ for a fuel cap, for something that probably cost them $2 to make, is an absolute robbery huh lol

[@phou182to1blee]

Thank you

[@Gorbachefchew]

Excellent Video, CLEAR and EASY to follow. Thanks... The only thing I want to ask is what is the model of your Actron OBD II Auto Scanner... Thank you again for posting. Just SUBSCRIBED...

[@alexsystems2001]

T Lee next time I get my scan tool out I’ll try to get the model number off it it, it’s a few years old though. Thank you for watching, the positive comment and subscribing.

[@Gorbachefchew]

@@alexsystems2001 Thank you very much...

[@Distanc3]

Thank you, worked for me! I had also tried two other suggestions: disconnect the battery for twenty minutes, and jump the two ODB pins that cause vehicle to enter VSC calibration mode.

[@alexsystems2001]

Awesome to hear!

[@jdmaximus1217]

Great video I subscribed thanks

[@alexsystems2001]

Thank you!

[@raulsti78]

Thanks! Worked on my 05

[@GarryS7777]

Thanks a lot !!!

[@justincase8233]

I enjoyed your video and will attempt the same repair.

[@alexsystems2001]

Thank you. Make sure to not skip the step of reading your codes. If you don’t have the same codes, this probably won’t work.

[@nyacoustics8373]

50 bucks for a cap is outright robbery!

[@alexsystems2001]

I am unsure where you are looking but if you go to longo lexus website I think they have them for about $26. I hope that helps. Also make sure to read your codes. There have been a few people bellyaching because they got the same lights but didn’t bother to read the codes, put a new gas cap on and it didn’t work for them. They finally read the codes and it wasn’t the same issue.

[@crisrx77]

Yeah same funny lights came on in my 08 gx470 too it also dumped the air out of the air bags too.

[@Guuliann]

THANK YOU!!!

[@travisburk5193]

Thanks for the help with that. Awesome. Have you had any issues with the heater suddenly going cold for a while the suddenly blowing hot again?

[@alexsystems2001]

I’m glad it worked! As for the heater, no I haven’t had any issues with it, I know there are some delicate diverter type things in the ducts that open and close behind the dash for directing it to certain vents (face, feet, defrost) so there could possibly be an issue with one of those sticking, on my SC430 I had an issue just once with the air conditioner only blowing out by the front windshield. I shut off the car for a bit, went in and had lunch, went back out and it has worked fine every since. There could also possibly have been an air bubble in the beater core behind the dash. That could happen. Please check back in and let us know what you find out.

[@patriciarecklet3168]

Gonna try it!

[@alexsystems2001]

I hope you read your codes and have the same code if not, it probably won’t help at all.

[@mycoal3016]

Great video. Suggestion for video: stealership v. Auto zone. Test the over priced against the affordable. Test it, try it. Im sure people would watch for the entertainment value.

[@9_to_5_gaming65]

YOU ROCK THANK YOU SIR!!

[@edsonmercado1475]

Thanks, just happened this morning.

[@alexsystems2001]

Well, I hope it works for you too, some people don’t actually read their codes or have something similar but not the same or they buy an aftermarket gas cap and find out the lights don’t go away.

[@edsonmercado1475]

@@alexsystems2001 yeah had small leak evap codes. Cap seal was hard plastic. Purchased new Lexus cap, code cleared after 35+ miles.

[@alexsystems2001]

@@edsonmercado1475 awesome!

[@lambolegend1679]

Cool vid

[@2627722rocco]

good deal thank you.

[@miketammy4832]

Thanks I have the same problem so I'm really going to do the same

[@alexsystems2001]

Thank you for your comment. Make sure to check your codes first, there have been some people who just plop on a new gas cap and they say “this didn’t work” I ask what codes they got and that say “I didn’t check the codes” 😅

[@gavinscott10]

I have the same problem with my 02 es300 and it also triggers the ABS light. It comes and goes so I bought a new gas cap from Autozone but the problem persists. Error code is P0174. We cleaned the MAF but the problem still persists. Will try some more stuff on it.

[@renzojauregui347]

Thanks

[@akitatoyo8060]

Wondering if it will work for my 2005 Toyota Sequoia? I'm going to try it.

[@Tekevin]

Had the same issue, code C1201. I just installed the new gas cap from Advance Auto Part. Hopefully, this will work! Usually, it ties into one another when it has a blinking VSC and Engine light. I do not think I have an ABS issue, as my ABS light did not turn on. So I'll take the cheaper approach first.

[@alexsystems2001]

I appreciate your comment but I showed the codes I got and mine were linked specifically to the evaporative emissions system. Evaporative emissions basically collects the evaporation from your fuel tank to ensure it doesn’t go unburned into the air. I believe your code has something to do with the ABS system. I have my doubts a gas cap will solve your issues but if they do please let me know. Each code is tripped by a system or signals from a sensor and your code seems to be from a completely different system.

[@surplusbuyerliquidator934]

Subscribed and liked , I Have a 2006 Model , Codes are misfires and system too lean bank 1 Bank 2 , Buying a New Gas Cap tomorrow and hopefully this will Work 🙏🏻 / Thanks For Posting This Video , Will comment again if this works out.. 🤞 🙏🏻 🤞 / sure is pretty stupid on Lexus part , for just a gas cap to get all those Christmas tree.. WoW 🤨

[@alexsystems2001]

Be Blessed thank you for the positive comment I really hope it works out for you, if anything a gas cap is a cheap place to start. Please update us.

[@muhammadnadeemahmed1040]

nice

[@NewsBroadcasting]

I have C1207 on a 2000 LC tried so many things to fix it (VSC TRAC OFF) after driving.

[@tims4322]

Great video. I have the exact same issue with my Lexus GX 470 2006, don't have a code reader, but I am hoping it's only my gas cap as well. How can I be sure? Should I try changing the gas gap?

[@alexsystems2001]

Thank you for your comment, my suggestion if you don’t have a code reader would be to visit a local auto parts store. Often times stores like oreilly and autozone will read your codes for you at no cost. I hope that helps. Happy Holidays!

[@MrFrazor]

I’ve got a Lexus IS-F an driving home the light came on. I thought it was the fuel I put in but I’m gonna try changing filler cap first. Thx again bro.

[@alexsystems2001]

Please check your codes, if you have different codes this isn’t the fix. Also sometimes if you didn’t get the cap tight enough it’ll throw the same codes because of an evap leak. Most auto parts stores will check your codes for free.

[@hafiz198022]

Hi I have the same lights on my lexus is250. It came wene the vehicle noise change and it sounds like there is a hole somewhere in the exhaust. Also I plugged in obd and the code was p0430. Can you please help. Thanks

[@TapdConcept]

Thank youbso much for this problem soves video. But right now i need help with the speed limit alarm popup at every 50kmph i really need this alarm off😢

[@richdilorenzo8145]

I just ordered a new cap. Mine was exactly the same conditon (hard/flattened) While I am waiting for the cap I turned over the gasket to see if that might help in the meantime. Thanks very much.

[@alexsystems2001]

Thank you for the comment, how did it work? Did you get your cap yet?

[@richdilorenzo8145]

@@alexsystems2001 I just posted a new comment. Thanks.

[@arodderz]

@@richdilorenzo8145 hello. Did you get an auto zone one, or oem?

[@alexsystems2001]

If you found this video helpful please subscribe to my channel!

[@matt22blaster]

Subbed specifically for the stupid monetization rule. Thanks for the video. Best of luck with your channel!

[@alexsystems2001]

matt22blaster thank you I noticed you have some videos up there too, so I subscribed to you as well!

[@matt22blaster]

@@alexsystems2001 thank you sir!

[@sokhonshow]

useful video new friend

[@goodsoul978]

Thanks bro, what about bank 1 and bank 2 issue will you talk or make a video about .

[@alexsystems2001]

Thanks for your comment. Is there anything specific about bank 1 and bank two? Sometimes if it’s just one bank it might be the actual oxygen sensor that’s bad. Bank 1 and bank 2 usually refers to a side of the engine. Being a V8 you have two sides to the V bank 1 side and bank 2 side. Sometimes if it reads bank 1 and bank 2 lean or rich. It could be a mass airflow sensor, it could be a vacuum leak somewhere. When you plug it in you’d probably want to read the data from those sensors as well to hopefully determine if any of them are giving false readings which would cause the lean or rich condition that your oxygen sensors are picking up. I have a LS460 that the valve cover gaskets leaked so much on one side of the engine it ruined the O2 sensor. So it wasn’t a problem with the actual engine running poorly, it was a bad sensor that was damaged by oil leaking. So you’d really need to dive in a little deeper and see what the sensors are reading and if any of them are bad. I hope that at least points you in the right direction.

[@goodsoul978]

@@alexsystems2001 thanks for the details reply ma man , have to dig more and get back , but it’s a very common puzzled issue I have and I know many do as well . Wish you the best in your channel

[@ecahatch]

I replaced my gas cap as well, mine too a little longer than 37miles though. I'd say around 90'ish miles it went away.

[@alexsystems2001]

Awesome!

[@scflooring8658]

Thanks bud

[@alexsystems2001]

I hope it works for you, make sure if you are getting parts before doing that read your codes, if you don’t have the same codes you might not get the same results. Thank you for watching

[@TheMcs33]

Gass cap thank you it's been 2 day light has not came back on i replaced it all lights went i cleared code after i replace

[@BC_Explores]

Did your gx get put into a “limp mode” when this happened? Mine had the same lights come on in that same sequence, and I had several of the same codes. But it threw my GX into “limp mode”. We cleared the codes and this cleared the lights and took it out of limp mode, but I am still going to look into this. My gas cap seal is still good. Thoughts?

[@alexsystems2001]

If yours went into limp home mode I am figuring it was a different set of codes possibly. If you figure out what happened check back in and let us know.

[@86.ls430]

I got P0155 code but the check engine and vsc lights came up after fueling at the stn when I got the car last week. Will this solve the issue mate?

[@Darronsanderson]

Just changed coils and plugs, allsix 07 RX350, Check engine, VSC and Trac Off lights still on. Will a drive cycle clear them? Or, clear from a cheap OBD2 tool? If not it may be the injectors.

[@alexsystems2001]

I apologize but I don’t even know if that was what your problem was. If you fixed what the problem was the lights would probably go out eventually, if you didn’t they won’t. In the video I showed the code I got which didn’t have anything to do with the plugs and coils.

[@matjenkins9025]

I have a 07 sequoia 4.7 limited had those lights on also, so changed the mass air flow, the fuel purge valve, pcv, injectors, coils, spark plugs, carbon box, and new 02 censors, and yes the gas cap, still the lights are on !!!!!!!!

[@alexsystems2001]

I don’t mean any of this as rude, but did you read your codes? I showed in my video what codes I had, I showed the diagnostic process. The codes should get you pretty close to whatever your problem is. These lights will come on even if there is a transmission problem, a catalytic converter failure, an oxygen sensor issue etc. If you didn’t have a misfire code, why would you change the coils? If you didn’t have a lean/rich on a certain bank of oxygen sensors, why would you change the oxygen sensors? Again, this isn’t meant as rude but after all the time and expense you put into changing all those parts, if you don’t have a code associated with those parts, you are hurting your own wallet. Start on the right track, and read the codes to determine your problem, those lights come on because something is out of spec and the computer sensed it and stored a code regarding the issue.

[@matjenkins9025]

Not at all brother, so yes she is running lean also so that's why all those changes which yeep you guessed it didn't do a dam thing either. But I do have the Vsc and trac lights on also with engine light !! Not at all rude brother say it how it is, I prefer that. Code is P0420 and P0430 all state catalyst system efficiency below threshold bank 2

[@alexsystems2001]

@@matjenkins9025 oh darn, usually on a scan tool you can see the live output reading of the oxygen sensor in a graph. If you are getting movements or readings, it’s a high likelihood that would usually point me to the cat being bad. I don’t know about your specific situation with your car but there is a good possibility that’s the issue. Usually you have upstream and downstream oxygen sensors, one before the cat and one after the cat checking the functionality of the cat to make sure it is doing its job. Also usually on a V8 they have bank 1 and bank 2. One bank is one side of the V8 and the other bank is the other side so if it’s saying bank 2 and not bank 1 then it’s pointing to the cat on the bank 2 side of your engine. I hope that helps get you closer but I wouldn’t want to change another part it sounds like everything is working up until the cat on bank 2

[@matjenkins9025]

@@alexsystems2001 awesome brother thank you and yes checked it and it is definitely a vapour leak from bank 2 by the looks of it ,,, pain in the ass. And cats are wickedly expensive these days man ,,,, thank you sir for your time and I will definitely keep in touch and watch your videos they are really good mate. Crack on making them and I will spread the links

[@carsonstorey6501]

I’m having these lights but the vsc is very much ON and won’t let me move hardly at all, does this normally impact the performance a lot?

[@alexsystems2001]

Thank you for your comment, I show in my video the diagnostic portion of the fix by using a code reader. I would highly recommend having your codes read, if you don’t have the same codes this may not work for you. As for performance, my performance was not affected at all by this issue. Often times local auto parts stores can read codes for free. I hope that helps.

[@chief6369]

I'm going try this with my 01 ls430 see if it works

[@TheJimmy1073]

I subscribed. Will this affect the way the car shifts

[@alexsystems2001]

james andres good morning, I don’t believe it should. I didn’t have any shifting issues and I didn’t hear of anyone else having shifting issues. Have you checked your codes? Most auto parts stores like an auto zone offer free code reading. Maybe you have some sort of a transmission fault or sensor issue. Thank you for subscribing, please update us on your issue.

[@TheJimmy1073]

Bmwryder the truck started hopping and not shifting died out a few times. Was able to driv it home in low gear. Dealership replaced internal harness and 2 solenoids that were not putting out the right voltage to shift the tranny. Was all good now from a stop sometimes it doesn’t seem like it kicks down to 1st gear and the engine revs and then it jumps when it catches but doesn’t do it all the time. Wondering if it might be the speed sensors

[@skylerhauprich5078]

@@TheJimmy1073 mine is having acceleration problems and also is throwing this code for bank 2 did you ever figure out your problem ? Curios if its worth it I really love this vehicle

[@ElG3n3R4Lxatruch702]

I bought a gas cap on autozone, then I erase the codes with my obd2, it worked for like a week but then they just came on again, I had the same light on, is there any difference between autozone gas cap and the dealer

[@alexsystems2001]

Fernando Torres I wouldn’t be sure about the quality of the gas cap, if the quality is the same there might be additional problems with your evaporative system, this is just an affordable start instead of starting with a mechanic trying to rip some people off.

[@hymanbros9331]

Well, we just got a cap from our local Lexus dlr, same part#, was 32.00