Car won't idle after cam swap
#1
Car won't idle after cam swap
i just installed my cam (ms3) cam and 243 heads on my 2000 camaro, I went to turn on car but won't stay idle by itself unless it's under throttle and when it is under throttle seems run good but when I let of the throttle it turn over, is doing because it needs a tune or is because of something else ?
#2
TECH Senior Member
It. Needs. A. TUNE! You have TOTALLY changed the airflow dynamics of your engine. I'm surprised it even starts...
#3
Okay because it's been tune before for my bolt on I have fast 102 mm intake and tb and 4k stall and 4l80w swap with hd2 shift kit and long tube and full exhuast and lid , I just wanna be sure it's just because it needs a tune before I take it to go get tuned
#4
TECH Senior Member
Yeah, you put in a raspy cam and better-flowing heads, which pretty much change the whole character of the car. It DOES need a tune. The only reason it runs above idle is because the MAF takes over from the VE tables and adjusts AFR to run right.