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.

idle surge is back...

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

jwahl16

10+ Year Contributor
427
3
Oct 26, 2009
Havertown, Pennsylvania
Ok well my idle surge is back. Here's the low down:

I had idle problems, but when i put in my hard ic piping we noticed the bov was really loose and leaking, so i fixed that. I forgot i had my isc unplugged so I drove with a high idle (8-900 in drive, 11-1200 in park). My biss was screwed all the way in.

I then plugged the isc back in and drove a mile or so. By the time i got to my destination my idle was at 300 (in drive). I then backed the biss out to the right spot and it was fine. Well now i got home and in drive its at 1100 and park it tries to climb to 2000, but the ecu cuts fuel so it drops to 1500 then climbs back up, drops, etc.

This is all with the biss screwed in almost all the way again.

What are my steps from here, clean the throttle body (when i changed the ic piping it didn't look that bad)? I think the isc is working since it dropped the idle when i plugged it the first time.

What do you think?

(Sorry for the loooong post)
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Latest Classifieds

  • For sale 1g 90 Oil Cooler
    90 OEM oil cooler with custom lines. Takes 18x1.50 mm fittings at the housing. Fits in a...
    • Galant665
    • Updated:
  • Wanted 2g 2G FWD Fuel Filler Rubber Hose
    Decent condition FWD fuel filler hose.
    • kyler021
    • Updated:
    • Expires
  • For sale 4G63 (Broken) Cusco MZ Center LSD
    Selling a broken Cusco MZ center LSD (not a Tarmac) for DSM/Evo123. This unit failed a magnaflux...
    • Canadian_CD9A
    • Updated:
    • Expires
  • For sale 1996 Eagle Talon Tsi AWD - RaceCar Shell
    Rolling Shell
    • Black_Cat_DSM
    • Updated:
    • Expires
  • For sale Neat gearbox 4 spider conversion
    I picked up two spare sets of spider gears for a 4 spider conversion as I wasn't sure what the...
    • tstkl
    • Updated:
    • Expires
Back
Top