first things first...MERRY CHRISTMAS! alright i have a 1992 rs camaro automatic, it was a 305 but i put a 350 in it, its still tbi. i have flowtech headers with side pipes and glass packs. with all that said, i seem to be haing a poblem with my idle...my idle will dipe and dive and eventually stall my car, especially when im lower on gas. also when i step on my breaks my rpms dive way down and then the car stalls...not too good if your trying to make a quick turn. oh and it seems that when i unplug my throttle position sensor the car runs better, otherwise my idle is so low my car barely stays running.any ideas?

 

first,MERRY CHRISTMAS back at ya.try resetting the tps,also you can adjust the idle with the idle screw.the home page has tech articles, go to how to adjust iac & tps.ill bet the tps is out of adjustment hope this helps ,later jimmy

 

Do you have the stock fuel pump, if so I dont think its strong enough for the 350. Just a thought hope it helps

 

I also think the stock 305 injectors are not sufficient for a 350, so I hope you replaced those as well and reprogrammed the prom to compensate.

 

Idle shouldn't dip when you hit the brakes. Might be a vacuum leak inside the power brake booster. Disconnect and plug that line temporarily to see if the situation improves. If it does, you found the culprit.

Agreed, the 305 injectors and chip won't run a 350 optimally without tuning but it shouldn't just die like that.

 

let me see..305 injectors and prom...workin on getting that switched out. tps is fine...but i havent checked vacum yet. ill give it a shot.