hi everyone. I've been searching for over a week and I cant find anything related to my problem. I have a 93 FD with single T-60, SDS EM2 computer, modified ECU, DP, MP, and XS engineering FMIC. I just installed a fluidyne radiator and I redid my pipes for the FMIC. I know I have a boost leak coming from the turbo to the IC, so I'm going to fix that soon. also my battery died so I had to get a new one.

after I was done with my project, I took it out for a spin. I boosted to only 2-3 lbs and I let go the gas pedal. I noticed that the gas pedal was still depressed and car just kept on going. I put it in neutral and the RPMs were bouncing off the rev limiter. so I just shut her off. first thing I checked was the throttle cable and it had enough slack. then I checked the throttle plates, thinking that it was stuck open, but that was also fine. then I towed the car to my friends house. the next morning, the RPMs werent bouncing off the rev limiter but it was still high - around 3k.

I talked to some people and they suggested the UIM and LIM gaskets. I just replaced them and I still have a high idle of 3k. If I just let it sit, I could hear the turbo spooling. does anyone have any suggestions on what could be the problem? thanks.

 

My J idles at 2700 and goes brap brap brap

 

but I dont want it to idle that high

 

what ECU are you using and where was it tuned? do you know the specifics or could there be a chance it isn't tuned for your setup?

other than that you might wanna try the TPS(throttle position sensor)?

good luck.

 

the thing is that the car was running fine before I redid my pipes and installed the radiator. ever since I installed the new radiator, it hasnt been running the same way.

the ECU is modified from speedline engineering (thats what it says on the ECU.) but I will try and tinker with the TPS. thanks.

 

[QUOTE]ever since I installed the new radiator, it hasnt been running the same way.

Does it make the car run cooler or hotter? I'm not sure if the radiator would cause a problem.