Supercharged speed density surge
04-19-2019, 10:17 PM
#1
Teching In
Thread Starter
Supercharged speed density surge I have a 71 chevelle with a supercharged 6L LS. It’s surging a few minutes into idle. It’s a speed density tune.
Here’s my data log. Can someone please help?
Here’s my data log. Can someone please help?
04-20-2019, 02:30 AM
#2
TECH Fanatic
IAC motor is closing off completely and the PCM is losing control of the airflow. Close the throttle blade 1/4 turn at a time to bring the IAC counts up to a 20-80 range while hot.