Bigpatsz
Newbie
I have A/C on my 1991 c1500 with 5.3L. Harness and computer are out of 99-04 silverado. I have my clutch signal wire triggering a relay which runs my efans anytime my compressor is on but the engine acts a little funny with the load from the compressor. While normal driving the rpms will go up and down, when coming to a stop the truck usually tends to want to die on me and it seems to be from the rpms dropping so low when at low speeds. Is there a way to fix this issue in the TUNE or will I need to find another wire from my factory harness to run to the LS harness to have the ECU recognize and compensate for the load. Runs just fine under normal conditions with A/C off. Thanks.