Howdy, This is my first post here, been lurking in the shadows for a few weeks and now I need some help.; My 90 formula is a 305 TPI 5 speed. Just noticed that it was surging at idle around and now its idleing 2300 rpm? Whats up? I just got a TPS and will put it on later. Thanks a bunch

Ron

 

Welcome to the board.

- could it be that your throttle cable is getting stuck?
- Is your cruise cable set too tight?
- major vacuum leak (have you done anything to the car recently)?
- bad IAC or TPS.
- have you reset IAC and set the TPS voltage to .54?

That's all that comes to my mind.

Good luck.

 

Thanks for the reply. I sprayed a can of carb cleaner in the TB why I was keeping the rpms up. I was real nasty, but that was last saterday. I changed the plugs and oil also but that was Saterday as well. I will try replacing the TPS Thursday and report back. Thanks for you reply
oh ps the cable is loose and is not holding the butterflys open.

 

It was the TPS..... thXS 4 THE HELP


Ron