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check engine light

  1. Current P0430 code, even though CEL went off

    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...
  2. 92 Previa LE Check Engine Light (That Turns Off When I Unplug and Plug Back in C/OPN Relay)

    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...
  3. 1998 Camry XLE 6 cyl./Auto - 85,000 miles, all fluids topped, Engine Check light remains on.

    Camry 3rd and 4th Gen '92-'01, Solara '99-'03
    1998 Camry XLE 6 cyl./Auto - 85,000 miles, all fluids topped, but Engine Check light remains on. April 2, 2020. Hello Fellow Toyota Fans! Low mileage, been taking it in for service, the last oil change was last December 2019. The day before yesterday Tuesday, after getting gas at Costco, on...
  4. Do I really need to buy a new catalytic converter (Code P0420)?

    Corolla 9th Gen/1st Gen Matrix (2003-2008)
    2003 Corolla LE, almost 190,000 miles. Had problem passing smoke about 2 years ago ("Catalyst Monitor" Incomplete or Not Ready). Mechanic did something to help get it ready and passed smoke check. Last month Check Engine light shows up again. Scanner reads Code P0420, "Catalyst System...
  5. 08 Toyota Highlander check engine light flashes when it is cold outside

    Highlander 2nd Generation (2008-2013)
    When it is cold temperature outside the Check Engine and the VSC OFF light blinks on and off and loss of traction light stays on. It skips while driving in about 10 minutes I can pull over turn it off and turn it back on the check engine light stops flashing and stops blinking... VSC, engine...
  6. 2007 Tundra - Flashing VSC, CEL, and Track Control Light On

    Tundra 2nd Generation (2007-2013)
    I have a 2007 Tundra Crewmax with 2WD. A couple of weeks ago, I the VSC & CEL came on. After some online search and testing the OBD, I got a code P2442 which calls out it's the Secondary Air Injection Valve stuck open Bank 2. After replacement of the Valve, I cleared the CEL and then the I...
  7. 2009 corolla check engine light automatically cleared -- ignition coil issue?

    Corolla 10th Gen/2nd Gen Matrix (2009-2013)
    Hello -- I got an oil change recently at a Toyota dealership for 2009 Corolla 4 cylinder 1.6L (about 60k miles) and in about a week, I saw the engine light turn on the freeway. At a stop light, I hear kind of change in vibration momentarily. On a subsequent short trip, the light went away on its...
  8. Spark plug replacement check engine light?

    4Runner 3rd Generation (1996-2002)
    Sorry this is long i just dont want to leave out details. have a 2000 4runner limited with 3.4L v6 5vzfe engine. Came home from school yesterday and decided to change my spark plugs. I started on the right side opposite of the air intake and replaced all 3 plugs easily. When i got to the left...
  9. CEL has a good bulb but won't come on

    T-100 Forum
    93 t100, check engine light will not come on. I have checked the bulb and pulled the ECU fuse to reset CEL, still nothing. Any input? I just want to be able to check my engine codes that I'm sure are there, im just not able to see.
  10. Oh Yes We Have No Power! "Check Engine" On

    Corolla 10th Gen/2nd Gen Matrix (2009-2013)
    Hi Folks, Been a long time since I posted here - My 2009 Corolla has been VERY trouble-free... Until about 30 minutes ago. A little background: 2009 Corolla with 141,000 miles. No real time at the dealership except for the "unintended acceleration" (gas pedal / mat) deal. Still need to get...
  11. Engine check light on and off

    Corolla 10th Gen/2nd Gen Matrix (2009-2013)
    I have a Toyota corolla 2009. Today morning when I started the car, check engine light started flashing and car was shaking. I had an urgency so had to drive the car for 1 mile in this condition. After finishing my work, I started the car again in the noon. But this time it started normally with...
  12. Got Code OBD II P0770 '97 Rav4

    RAV4 1st Generation (1994-2000)
    It's my girlfriends car and she was getting off the highway arriving at my house and she claimed the inside smelled like gas and the CEL came on with that code. She said it smelled like gas in the car but it smelled more like oil but my sense of smell isn't the best so I cant be too sure. The...
  13. Failed State inspection-Tried Everything-Last Hope

    Corolla 10th Gen/2nd Gen Matrix (2009-2013)
    Bought a car last year 2014 corolla used. Car was driving fine, till i had to do inspection last month and it failed. It failed with code P0101. Initally i did a light reasearch and seems like everything was pointing towards MAF sensor, so i bought a MAF sensor cleaner and sprayed, and checked...
  14. Help with engine light/ o2 sensors.

    Camry 5th and 6th Gen '02-'11, Solara '04-'08
    Hi, im am new to using forms so go easy on me if i do not provide the correct information upfront. I recently bought a used 2003 Camry 2.4L. Recently the check engine light came on and after getting it diagnosed from two different mechanics was told i needed to replace the catalytic converter...
  15. Check engine light ON

    Highlander 1st Generation (2001-2007)
    Good day fellows! I have a Toyota Highlander CVX 2004 (here we call it Kluger). I bought this car for a second owner, it was a little bit careless but the hard mechanic was in a good condition. I bought the car with the Check engine light ON (because of that i get a really cheap price) and it...
  16. 06 Avalon check engine light, VSC light, P0300

    Avalon 3rd Generation (2005-2012)
    The check engine light came on along with VSC light, I put on odbc reader and got the following codes. Any suggestions? Looks like everything from fuel filter, fuel pump, plugs, plug wires, coil(s), ERG, I dont know where to start. Why would VSC and these codes come up? thanks Current Fault...
  17. 2003 Toyota Echo w/146k MTrans. - shaky -regardless in neutral or drive

    Yaris/Scion iA, Vitz and Echo Forum
    Hi All, As title says, my car that has 146k and had no major problem so far. Today afternoon I went to the grocery, drove 3 miles, did a shopping for 10-15 minutes, came back, started to drive a car, and noticed a fine shaking. I stopped at the red light, then at a 4-way stop, and put the stick...
  18. Premium gas VS Unleaded for MR2

    General Discussion
    Hi. I bought a used 2001 MR2 and for the past few months I've been putting Premium gas in it although unleaded was recommended. My Check Engine light went on yesterday. Could it be because i've been feeding it Premium gas VS unleaded? If so, any way to fix this? What harm will the premium gas do...
  19. No startup Check Engine Light on 2000 Avalon

    Avalon 2nd Generation (2000-2004)
    I am the original owner of a 2000 Avalon XLS V6 3.0L . A few years ago, beginning with the infamous gas cap issue, the various indicator lamps started coming on. After getting a new gas cap, that problem went away. Then a couple years ago we started getting VSC and other lights. After over...
  20. Flood waters - Check Engine Light

    Camry 3rd and 4th Gen '92-'01, Solara '99-'03
    Good afternoon. Had to drive my '97 Camry (automatic) through some flood waters yesterday - water almost covered the tires. Drove straight home and parked. This morning, turned ignition and the 'check engine' symbol was showing. During the night we'd had more monsoon level rains, with more in...
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