onlyrotary1989

fc3svert issue.....Idle is ok until I get in the high RPM range (5/6 port opening range)...once it is driven kind of hard for a period of time the idle drops and lobes like I have a racing cam or something...any ideas?

pmr2000

Try setting the idle and TPS first as per the FSM. If it still occurs probably bad BAC.

If it drops when stopping at a light then slowly goes back up most likely BAC. Also check it without lights\accessories on and off.

onlyrotary1989

lights and accesories make no difference...were you thinking electrical possibly?

blackangst

I'll second this. And dont skip the part where it tells you to use the ground-spade-plug thingy!!! Most people skip this, and cant figure out why they cant tune their idle...

pmr2000

Marginal BAC usually reacts more quickly without any electrical load.

onlyrotary1989

Great...thanks guys...ill give it a shot...appreciate the help

onlyrotary1989

oops...forgot to mention this and it could be a big deal...but after running for a little while I also have a tough time restarting...could it be a engine integrity issuse and my seals are bad? or could this also be a result of a bad BAC? please say BAC please say BAC...would rather not have to rebuild engine.

Go48

iTrader: (7)

Hard starting of a warm engine can be a symptom of poor engine compression or injector(s) dumping fuel into the engine after it is shut off. Check the engine compression before you do anything else. This is not a BAC issue.