Hey guys, I am new to the forum and I need a little help. I have a 92 RS with a 305 TBI and it was suffering from a crazy rich at idle problem. I checked the injectors and they seem to be firing okay. So, last night I installed an injector reconditioning kit along with a new IAC and Air Charge Temp Sensor as well. After re-installing the TBI unit, I went for a test drive. That seemed to have fixed the rich problem but now I have a high idle problem. It only occurs after I have been cruising and I take the car out of gear to come to a stop. The RPMs go to +/- 2500 then settle down to 1500. I have to leave the car sitting for a minute or more before the RPMs settle down to 750 again. Any thoughts?

 

Welcome aboard thirdgen.org.

I'm moving this to the TBI forum with the expectation that you're more likely to get a useable answer than you would on the Tech/General Engine forum.

 

i would check for a vacum leakor maybe sounds like the throttle plate is sticking i had the same problem adjust the idle screw untill i just hits the plate and turn it a half turn more

 

How did you overcome the sticking throttle plate?