The Central Hub for DSM Community and Information

For 1990-1999 Mitsubishi Eclipse, Eagle Talon, Plymouth Laser, and Galant VR-4 Owners. This is where the DSM platform history is documented and archived. Log in to help us in our mission, and to remove most ads from the browsing experience.

High idle after rebuild

This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.

EclipseGsxDsm

15+ Year Contributor
30
0
Jun 19, 2005
Williamsport, Indiana
My engine is fresh off a rebuild and everything is back together now. when i start the car up it idles excessively high. ive made sure the throttle cable isnt too tight and the isc screw is all the way tightened. my guess is there is a boost leak but i was just wondering if a boost leak could do this. if there are any other ideas of what could make this happen let me know. Any input is appriciated. :dsm:

P.S. also when i start the car the turbo is screaming. WTF :confused:
 
I'm having same problem mines a 2g though not sure if it makes a diff. My balance shaft is out of phase though so i thought it had something to do with that. going to fix that this upcoming week when i'm on vacation. WHOO-HOO :dsm:
 
Sounds like you have one heck of a vacuum leak. Is everything hooked up where it's supposed to be? Like all of the vacuum lines on the throttle body where they are supposed to go? Sounds like something along the lines of the isc motor or the throttle body is acting up. Try to compare your car to another dsm and check and see where everthing hooks up(vacuum wise). BTW, when you start the car up and rev it, does there seem to be an excessive amount of vibration comming from the motor to the car? If there is, then your balance shafts would be out of phase, but I don't think that this could be the cause of your problem. Also, how is the ignition system on the car?
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community
Boosted Fabrication ECM Tuning ExtremePSI Fuel Injector Clinic Innovation Products Jacks Transmissions JNZ Tuning Kiggly Racing Morrison Fabrications RixRacing RockAuto STM Tuned

Build Thread Updates

Latest Classifieds

  • For sale Sun roof
    1st gen sun roof
    • Gaterateit
    • Updated:
    • Expires
  • For sale Precision 62mm Jet Fighter Compressor Housing
    Precision 62mm Jet Fighter Compressor Housing
    • mikEclipse99
    • Updated:
    • Expires
  • Wanted Wtb t3 forward facing
    Looking for a nice 1g t3 forward facing manifold with 44mm wastegate flange, bottom and top...
    • El_marto
    • Updated:
    • Expires
  • For sale 1g 90-91 Talon pass taillight.
    Pass taillight for 90-91 Talon. Good condition. No breaks or cracks. Will buff up nice...
    • Galant665
    • Updated:
    • Expires
  • For sale 1g Samco sport 4-ply silicone coolant hoses
    Nice set of silicone radiator, heater core and throttle body hoses
    • ThunderChild
    • Updated:
Back
Top