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.

2G Rough Idle

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

one_time

Probationary Member
9
0
Jun 19, 2011
Auburn, New York
I've got a 97 GSX turbo and we just rebuilt the whole 4G63 engine because one of the balance shaft barings went and caused havoc inside the block....we used the shaft eliminator and put a stubby shaft in had the whole head redone professionally and put it all back together. With acceleration it runs great but when idle it runs like crap...

Here is a video of what it sounds like when idling and some slight acceleration

YouTube - ‪Video-0010.3gp‬‏

We replaced the fuel filter and cleaned the injectors still the same issue....Took off the MAF sensor and that's working fine...

It smokes a bit and sort of smells like unburnt fuel blue smoke we figure is from all of the cleaning crap we put in it while rebuilding it....

We're at a loss as to why it's so crappy on idle does anyone have ANY ideas????

I'm sorry I forgot to add the exhaust leak is fixed...most of what you're hearing there is exhaust but that's fixed the idle is still messed up like it's flooding it's self out or starving for fuel but we checked the whole fuel system and it all checks out...
 
Check ISC, for boost leaks, ignition transistor. Hook up a logger and check for codes too.
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

Back
Top