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 at warm up?

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

SurrealDSM

15+ Year Contributor
141
1
Feb 21, 2005
La Habra, California
Hey tuners,
It seems like once one thing gets fixed i hit another problem but im coming up stumped and i'm in need of some advice. Well coming home from work wednesday afternoon my car ran fine in the morning to work but once i got off the freeway on my way home my car started to high rev at 2000 rpm then sometimes would go to 1500 then back up to 2000 and in some cases 2500rpm. first thing that had come to mind was a leak somewhere i couldn't find anything at all, then i pulled my codes and same usual ones except code 21*upstream ho2s stays at center* pop'd up but i have no idea if this would cause my idle to rev up and stay at a consistant 2k rpm any advice or someone that dealt with this dilemma could maybe point me in the right direction? thanks for your time and input in advance guys

its back under that hood i go and also some more research:thumb::dsm::dsm:
 
Change the front oxygen sensor, and give the engine another once-over for vacuum leaks.
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

  • For sale 4G63 NEW Stop Tech Drilled And Slotted Rotors
    New Stop Tech Drilled & Slotted Rotors $70 + shipping and paypal fees* FITS * Eclipse GST...
    • jersygsx
    • Updated:
    • Expires
  • For sale 2g 2G GSX/GST Manual Transmission Steel & Poly Mount
    2G GSX/GST Manual Transmission Mount (Steel & Poly) $45 + shipping and paypal feesYou must be...
    • jersygsx
    • Updated:
    • Expires
  • Wanted 1991 tsi AWD auto engine harness
    Looking for a engine harness for my 1991 eagle talon AWD tsi auto trans If anyone has one hit...
    • sanmantsi72
    • Updated:
    • Expires
  • For sale 1997 eagle talon tsi
    I have a 1997 eagle talon tsi fwd auto for sale. It has 108k miles and in good condition.Recent...
    • El_marto
    • Updated:
    • Expires
  • For sale 1G DSM 4G63 PARTS
    Cleaning out my shop closet, Buyer covers shipping & fee.Parts:.20 Over Turbo 6-Bolt Block...
    • The_Partout_Spot
    • Updated:
    • Expires
Back
Top