Car won't idle after cam swap
09-18-2017, 10:04 PM
#1
Teching In
Thread Starter
Join Date: Aug 2016
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
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 ?
09-18-2017, 10:23 PM
#2
TECH Senior Member
It. Needs. A. TUNE! You have TOTALLY changed the airflow dynamics of your engine. I'm surprised it even starts...
09-18-2017, 10:26 PM
#3
Teching In
Thread Starter
Join Date: Aug 2016
Posts: 26
Likes: 0
Received 0 Likes
on
0 Posts
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
09-18-2017, 10:30 PM
#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.