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.

New engine in, Slight idle problem

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

ryanx99GS

20+ Year Contributor
247
1
Sep 26, 2005
St Louis, Missouri
Okay so I recently swapped in a 7bolt with a 1g CAS/1g NT TB/ and the cyclone intake manifold (without butterfly actuator, wasn't there when I bought it). I also did the vacuum delete. Car starts. I transfered over my 2g TPS to the 1g TB. Now when I start the car (I have the downpipe off btw because I have to rethread the holes, :notgood: rust) it will hold at idle at 1.5k RPM's and sometimes fluctuates by dropping a tad and then back up. I have the Biss screw screwed in all the way, if I start to unscrew it then the idle starts to climb RPM's. Anyone know what the problem is? Could the downpipe (exhaust leak) be causing it to idle that high?

Could the problem also be the 1g ISC? Would my 2g ISC fit on it? Another possibilty that I think may be the problem is this:

You must be logged in to view this image or video.


I do not have a plug on my 99 engine harness to connect to that. Would that have anything to do with it also?
 
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