97 vett idle change after truning on airconditioning.

[Chriskaw7r]

Ok details of car Fast 102 and 90mm TB install was the last items changed that affected airflow. When I engage the A/C the idle goes way up like an airflow adder. Does it parked or moving about 1200 rpm. I can cruise the highway at 70 mph with the added airlflow. I m not sure I m using the right table to adjust this. It appears that the table B4356 controls torque loss. When I change the values to adjust the program accepts the changes but when I download the file from the car it still has the old values. Any ideas? B4603 in gear AC on is 800 RPM

[WeathermanShawn]

I always adjust the AC/Fans via B4301 and B4302. In my case, I added air..but you can decrease it. The fans do come on with A/C.

I use B4603 as indicated. I bump up A/C Idle by 50 Rpms to keep from stalling. But, the first two you can immediately tell the difference.

Good luck.