ok... i have a 98 RS and it has basic bolt ons and crower stage 2 cams. the engine runs fine until it warms up. after it warms up and youve driven it a little ways, it starts to hesitate and sputter. then it throws a code, and when you put the clutch in and let off the gas it doesnt idle down it either stays at the same or idles up some. could this be a fuel problem? i have an s-afc 2 and the fuel map shows lean through mid range and a little richer near the top end. is this an ignition problem, fuel problem, or timing? i am 2 deg. advanced on intake and 0 on exhaust.

Originally posted by rs_sleeper98
ok... i have a 98 RS and it has basic bolt ons and crower stage 2 cams. the engine runs fine until it warms up. after it warms up and youve driven it a little ways, it starts to hesitate and sputter. then it throws a code, and when you put the clutch in and let off the gas it doesnt idle down it either stays at the same or idles up some. could this be a fuel problem? i have an s-afc 2 and the fuel map shows lean through mid range and a little richer near the top end. is this an ignition problem, fuel problem, or timing? i am 2 deg. advanced on intake and 0 on exhaust.

Could be also your IAC motor. What does the code say?

havent had the chance to check it yet. im gonna swing by advanced tomorrow.

or it could be the safc.

i would zero that POS out and see what happens.

Originally posted by Blizare
or it could be the safc. i would zero that POS out and see what happens.

X2

s-afc was fine. didnt change anything so i put it back on the settings i had it on. someone told me that the ecu is trying to fight the cams... oh and the code was a "engine coolant temp. high output" but the engine is running a normal temp. bad sensor?