I finally got the TPI runners installed last night. Buttoned up everything else and started the car. It idles at about 2000 RPM at startup and slows down to about 1250-1300 after a short warm up period. The throttle is against the stop and I did not change any adjustments so what do I need to do to correct the idle.

Thanks for all the help getting these injectors and runners installed. I now have a great appreciation for full time mechanics!!

Leonard

 

With all the knowledge on this board, someone must have a suggestion.

 

hey, on the throttle body drivers side there is a plug behind the throttle stop take out this plug( re screw driver )then take a star socket and turn the screw counterclockwise this should bring the idle down. also , double check all vacuum hoses.hope this helps,jimmy

 

sounds like you have a vacuum leak somewhere do you hear any hissing? there is also an iac adjustment procedure in the tech articles

 

I am thinking that a vacuum leak could be the culpret because I did not change the setting so you would think it should still idle properly.
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It is hard to hear if it has a vacuum leak with it idling so fast. I tried to be very careful with placing all the vacuum lines back in their original position. As tough as it was to get the runners on, I might have pulled off a hose.

So what is a good way to locate a vacuum leak?

 

Use a plumbers propane torch (don't light it ) and go around the areas where the vac hoses are and also around the intake plenum and runners. If the RPMs go up you found your leak.

 

Thanks for the tip!!

 

^ Yeap, that works really well. I'd say a vacumm leak myself.