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  1. Tundra 2nd Generation (2007-2013)
    So I changed my spark plugs at 115,000 miles. And also installed a k&n air filter in the OEM air box and installed a k&n air pod on the secondary air intake. After about 200 miles I got a check engine light and I believe my traction light directly underneath CEL came on at the same time. Code...
  2. Corolla 9th Gen/1st Gen Matrix (2003-2008)
    I have an 06 matrix that the check engine light used to sometimes be on when you first put the key in, but no code so it would go off when I started the car. these past few months the check engine light never comes on, and the inspection guys said I can’t pass inspection without it coming on at...
  3. RAV4 4th Generation (2013-2018)
    I have a 2017 Rav4 with 32k mileage, my battery died, I got a jump & then got a check engine code & AWD system malfunction 2WD mode engaged visit your dealer. I am living on an island in Alaska & have limited access to help. Please advise.
  4. Camry 5th and 6th Gen '02-'11, Solara '04-'08
    Four days ago the Check Engine light came on. Only problem was the car was hard to start. After a few tries the car would start and run perfectly. Once the car started I could make a quick trip, come back out 30 minutes later and the car started and ran perfectly. Check Engine Light Remained...
  5. 89-95 Toyota Pickup/Hilux
    Is there a check engine code analyzer for my 90 Toyota Truck? Tired of having to pay the mechanic $84 each time. Autozone and or Oreilly don't seem to have them. Thanks in advance for your reply.
  6. Venza Gen2 Hybrid (2021+)
    I just purchased a new 2022 Venza on Feb 16th, on the 25th the Check fuel cap came on, took it to the dealer, of course it went off, the next day the Check engine light came on, took it back to the dealer was told it was the gas cap. The car only had 85 miles on it, I never took the cap off...
  7. Highlander 1st Generation (2001-2007)
    This morning, my 2004 Highlander started showing these three lights at the same time: Check Engine, VSC, and TRAC OFF. Has anyone here had this issue and/or know what it could mean/how to resolve? Thanks
  8. Highlander 3rd Generation (2014-2019)
    I bought my 2019 Highlander Limited in January 2019, currently at 40,000km. check engine light came on in September 2021, check AWD, Call dealer. Brought it in, they replaced the O2 Sensor, Rear Bank? Then in November, check engine light came on again, same messages, replaced the the A/F...
  9. Camry 5th and 6th Gen '02-'11, Solara '04-'08
    Two weeks ago, I got a P0171 check engine light code (Air/Fuel Mixture System Lean Bank 1) for my 2007 Toyota Camry SE when I had the guys at Meineke scan it. My mechanic at Hi Five Auto Care, after looking at the car, told me they'd have to replace the mass air flow sensor and fuel pump. So...
  10. Highlander 2nd Generation (2008-2013)
    I recently installed an aftermarket radio into my 2013 Toyota Highlander SE using a plug-and-play harness. Shortly after installing, the engine light came on. The speedometer and tachometer are working perfectly fine, and the car seems to be running fine as well, but my cruise control won't...
  11. Corolla 7th Generation (1993-1997)
    Hey there fellas! i am actually in need of your help or any suggestion you can give, i have this 96 Corolla and i am having trouble of finding the problem of the check engine light. So here is the problem: 1. If your put the key into ignition all the the dash lights and indicators shows up. 2...
  12. Camry 5th and 6th Gen '02-'11, Solara '04-'08
    So about a week ago my the pipe at the end of my cat broke right where the flange is. I got a new CC as it was fairly cheap to do so and everything seems normal. Temps are fine, no noises and it runs as good as new. I was driving earlier today and I noticed my check engine light came on. It...
  13. Camry 5th and 6th Gen '02-'11, Solara '04-'08
    Our ‘07 Toyota Camry LE has a high coolant temperature and a check engine light. When we turn it on, the coolant (temperature) gauge goes all the way to high. Also the tire pressure light blinks and the check engine light comes on. The tire pressure light is for a failed sensor. When we start...
  14. Highlander 3rd Generation (2014-2019)
    Look for some insight or others that have had these codes. The only time theye come on after deleting is if i stop at a stop light for about 20+ seconds. Did a 150+ miles with very lil stop and go and no extend stops at lights and codes never came on but once i made my way to a more populated...
  15. Tacoma 3rd Generation (2016+)
    Just purchased a 2017 Tacoma V6 with 77K miles at a dealer. Within 24 hours the Check Engine Light came on. The dealer said it was a problem with the cylinder heads. The dealer is trying to get Toyota to pay for the repairs so it's still in the shop after a couple of days. Question: What...
  16. Previa Forum
    Tl;dr: Long story short, the coolant temperature sensor was replaced twice and the next step is for me to take the car into a Toyota dealership to check out the ECM and see if it's still functioning correctly. Any tips? -- I was driving my 1995 Previa up a hill and the "check engine" light came...
  17. Highlander 4th Gen - Hybrid (XU70/2020-Present)
    We purchased a 2021 Highlander Hybrid Platinum in February. At about 650 miles, the check engine light came on without any warning. The car has been at the dealership for a few days; however, the technicians have been unable to diagnose and fix the problem beyond identifying the code that there...
  18. Corolla 11th Gen Sedan 2014-19, Scion iM 2016-18
    So I was on the freeway going about 70mph and went to downshift to pass two vehicles. However, after I shifted and as I was stepping on the gas to accelerate, it popped out of gear and revved very high. It did not lerch forward but I did not hear the rev limiter at all. 5 minutes later the check...
  19. Sienna 2nd Generation (2004-2010)
    Hi all! I have a 2004 Sienna ltd w/ 200k mi. CEL was on, and was throwing a P0430 code. I did the spark plug anti-fouler modification to the bank 2 sensor 2 o2 sensor, (which is what the P0430 code refers to). And about 75 miles later, the CEL went off. Yay! BUT when I rescanned the car (I...
  20. Previa Forum
    Hello there! I’m Oak and I’m new here. I have a 92 Previa LE, automatic trans, 278xxx miles. The check engine light is on, but if I unplug the circuit opening relay and plug it back in, the light goes away until I drive approximately 15-20 miles then it comes back on. Does anyone have any idea...
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