+ Reply to Thread
Page 1 of 2 12 LastLast
Results 1 to 10 of 11

Thread: Car starts but dies when stepping on gas even at idle...HELP!!

  1. #1
    The Hmong Guy
    7mgte_supra's Avatar
    Join Date
    Nov 2006
    Location
    chico, Ca
    Posts
    51

    Default Car starts but dies when stepping on gas even at idle...HELP!!

    Does anyone know what could cause the car to die even at idling when stepping gas? I just got back into the supra scene. Ive known several problems that can cause this such as vacuum leak and that cps harness. But i've check those and it's none of them, when i drive it it looses a lot of power and the check engine light comes on but when idles it goes away. Sounds like there's an exhaust leak but when idle there's no sign of exhaust leak. Could it be the air mass sensor or coil pack? Could it be the timing too? as was told the timing is off and keeps ending at the bottom instead of being on top and lining up. I just got the car from my cousin who recently bought a 03 celica gts and him nicely gaving it to me knowing im inlove with supras. I cant wait to get this baby running and would be happy if you guys can help me out. Thanks

  2. #2
    Supramania Regular
    89supra7mgte's Avatar
    Join Date
    Sep 2009
    Location
    colorado
    Posts
    797

    Default Re: Car starts but dies when stepping on gas even at idle...HELP!!

    check your codes. It sounds like the AFM is bad. I ran into it once before where the check engine light would not stay on. I was able to track it down by getting the car to die, leaving the key on, where the check engine light should be present and reading codes. Had faulty afm. Do you know if he had ever cleaned it with carb clean? If so 100 % chance it got ruined.

  3. #3
    The Hmong Guy
    7mgte_supra's Avatar
    Join Date
    Nov 2006
    Location
    chico, Ca
    Posts
    51

    Default Re: Car starts but dies when stepping on gas even at idle...HELP!!

    I have no idea if my cousin use carb clean but i would not use it, also it seems like the cps is off. So i am going to adjust it right now. the car runs and everything but has no power at all and seems like it does leak or w/e. Well see after i get the cps to line up correct with the timing.

  4. #4
    Supramania Regular
    89supra7mgte's Avatar
    Join Date
    Sep 2009
    Location
    colorado
    Posts
    797

    Default Re: Car starts but dies when stepping on gas even at idle...HELP!!

    check codes

  5. #5
    The Hmong Guy
    7mgte_supra's Avatar
    Join Date
    Nov 2006
    Location
    chico, Ca
    Posts
    51

    Default Re: Car starts but dies when stepping on gas even at idle...HELP!!

    How can i check the codes when no check engine light is on? it only comes on when u drive it and it boggs like shiiit but when u go neutrual it goes away...

  6. #6
    Supramania Regular
    89supra7mgte's Avatar
    Join Date
    Sep 2009
    Location
    colorado
    Posts
    797

    Default Re: Car starts but dies when stepping on gas even at idle...HELP!!

    just check them the same way. In my case my code was not a hard code and would go away when started. Chances are you have an afm or cps code.

  7. #7
    Grumpy Old Man
    IJ.'s Avatar
    Join Date
    Mar 2005
    Location
    I come from a land down under
    Posts
    39,358

    Default Re: Car starts but dies when stepping on gas even at idle...HELP!!

    Unplug the AFM and tell us how the car reacts.

  8. #8
    Supramania Regular
    89supra7mgte's Avatar
    Join Date
    Sep 2009
    Location
    colorado
    Posts
    797

    Default Re: Car starts but dies when stepping on gas even at idle...HELP!!

    Good call i always forget about that tip.....

  9. #9
    Lurker
    superomeoman's Avatar
    Join Date
    Apr 2010
    Location
    Salem Oregon
    Posts
    9

    Default Re: Car starts but dies when stepping on gas even at idle...HELP!!

    ya i would check the maf i had the same problem not too long ago and thats what it was

  10. #10
    Dang Dude! No Way Man.
    hvyman's Avatar
    Join Date
    Apr 2007
    Location
    Fullerton,CA
    Posts
    11,617

    Default Re: Car starts but dies when stepping on gas even at idle...HELP!!

    Another vote for afm.

    Not all codes will trip the light.
    http://cygnusx1.net/Supra/TechTips/e...ror_codes.aspx

+ Reply to Thread
Page 1 of 2 12 LastLast

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Links monetized by VigLink