hey,i got a 91 hf with a b18a in it..now when i got the car..it idled at 2 g's cus they didnt have the vaccuum right on it..i managed to get the idle down to about 1300 but its still too high..but anyway...ever since i got my exhaust system and header put on...my car now,will start up,warm up at 1800 rpm,then as soon as its warm enough..the idle will start jumping up and down..from 600 back to 1000 continously..and when im driving and throw it in neutral..the rpms will go all the way down to even 0 for a split second,and then jump up just to keep the engine running...the lights dim and everything,thats how u can tell the rpms got too low....also..i noticed when i installed my hi flow cat..everytime i hammer it...my car makes this nasty fart smelling smell...it smells horrible,and i only can smell it when i hammer it..i thought it was breaking the cat in..but its been about a week since i got the cat on...anyone know what could cause that?
last thing...everytime i start my car up..white smoke comes out,and then when i shift gears,i was told on some days,little white smoke will come out...am i running rich or is somethin else wrong?
please help me....i mean i got another LS motor sitting in my house incase this one blows,but i dont want it to blow over some dumb shit that i couldnt prevent..im just not a maintenence trouble shooting expert.
last thing...everytime i start my car up..white smoke comes out,and then when i shift gears,i was told on some days,little white smoke will come out...am i running rich or is somethin else wrong?
please help me....i mean i got another LS motor sitting in my house incase this one blows,but i dont want it to blow over some dumb shit that i couldnt prevent..im just not a maintenence trouble shooting expert.