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.

RPM "hunting"

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

rydereclipse

Proven Member
141
2
Dec 17, 2012
Winter Springs, Florida
The problem I am having, is for lack of a better explanation, is my RPM seems to fluctuate at 1750-2000 RPM. When cruising about 40 at that RPM range. ONLY occurs fully warmed up. Idles like a champion. Pulls HARD.

The WB shows a swing of 14.0-15.6. Vac stays rock steady. Car doesn't feel like its missing/bucking at all, just feels like it cant stay decided on the RPM.

I thought it was my CeddyMod big maps not set up correctly, so I removed them, but the problem persists. My spark plugs are gapped correctly, checked 3 times. O2 sensor brand new OEM

I was thinking maybe a boost leak (but wouldn't that be a problem at all RPM/driving conditions?) or a TPS problem. What says the collective?
 
Check your fuel pressure, it might not be holding a steady pressure when cruising and also check ## injector connectors for being loose
 
Add Value - Be Respectful - No Trolling - No Misinformation - Participate Often!
Support Vendors who Support the DSM Community

Build Thread Updates

Latest Classifieds

Back
Top