1. Join the Community!

    DSMtuners is a massive archive of DSM information - but more importantly, it's a COMMUNITY! Join in and participate with other DSMers, and invite all of your DSM friends to make this place their home. Chat with others, create a build thread, post questions and answers. Get involved! Logging in will also remove many of the advertisements, along with this notice. ;)

Car almost dies after rev

Posted by 1990_talon, Sep 22, 2012

Please Support Feal Suspension
Please Support Morrison Fabrication
  1. 1990_talon

    1990_talon Proven Member

    61
    0
    Joined Jul 19, 2012
    Cranberry twp, Pennsylvania
    So when i rev the engine up over 2500 rpm it drops down to about 500 if not lower. Sometimes it will die. I have no clue whyh it does this. I just changed the plugs and wires yesterday and it didnt do it, but today it started doing it again. I have a GM MAF and maft. I dont know if the maft is dialed in right, could that be the problem? Also after changing the plugs and wires my a/f at idle dropped to like 10.0!!! it will bounce around that. Does anyone have any ideas why?
     

    255  0

    1990 Eagle Talon TSi
    · 1G DSM
    Loading...
  2. crazyquik22023

    crazyquik22023 Proven Member

    610
    5
    Joined Sep 14, 2008
    Akron, Ohio
    First thing is check for any boost leaks, especially leaks around throttle body, manifold, ISC, etc. Then make sure MAF is dialed in correctly. If MAF is not dialed in right that could definitely cause stalling problems. 10.0 is obviously much too rich .. Make sure you have 0 leaks then get your MAF set up correctly and see where you are at from there. After you do all that then you can go about adjusting BISS screw and getting your idle set correctly.
     

    850  0

    1998 Mitsubishi Eclipse GST
    12.900 @ 115.000 · 2G DSM
    Loading...
  3. 1990_talon

    1990_talon Proven Member

    61
    0
    Joined Jul 19, 2012
    Cranberry twp, Pennsylvania
    I have no boost leaks. I dont understand how to dial it in. I get through the first two steps and i dont understand the rest.
     

    255  0

    1990 Eagle Talon TSi
    · 1G DSM
    Loading...
  4. bryanwheat

    bryanwheat DSM Wiseman

    6,978
    171
    Joined Aug 16, 2004
    Columbia, Missouri
    Is your bov vented or recirculated?
     
  5. 1990_talon

    1990_talon Proven Member

    61
    0
    Joined Jul 19, 2012
    Cranberry twp, Pennsylvania
    Vented. I do not have the recirc adapter.
     

    255  0

    1990 Eagle Talon TSi
    · 1G DSM
    Loading...
  6. bryanwheat

    bryanwheat DSM Wiseman

    6,978
    171
    Joined Aug 16, 2004
    Columbia, Missouri
    Well that would be the cause of your problem. Get it recirculated and it should fix the problem.
     
  7. Tiki2777

    Tiki2777 Proven Member

    914
    61
    Joined Oct 9, 2011
    Omaha, Nebraska
    You'll need to reset your isc that will help a lot. I deleted/bypassed the FIAV, and that helped my idle surge as well. You have to make sure your isc is in the correct range and that you have almost zero boost leaks.
     

    Street Build 2K  1

    1998 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    Street Build 2K  1

    1995 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM

    1K  0

    1998 Mitsubishi Eclipse GSX
    manual · 2G DSM
    Loading...

Share This Page

Support Vendors who Support the DSM Community
ECM Tuning ExtremePSI Feal Suspension Fuel Injector Clinic Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications OHM Racing RixRacing RockAuto SouthBay Fuel Injectors STM Tuned Track Decals Track Sculptures VR Speed Factory