I have a 2014 5.3L with a large cam and I am having a hard time getting it to idle at my target idle speed, and timing is jumping all over the place. It also will just shut off randomly at above 2600 when I let off the pedal. Any help is appreciated.
Join Date
Nov 2011
Posts
21
Im dealing with similar issues on a similar combo, and found that lowering the Airmass A-D tables in the idle area is helping bring the idle up to commanded. I swagged out 80% first, then been fine tuning from there.
I dialed in the SD and Maf first and trims are in line... Still needs some work, but getting closer it seems...
make sure airflow is correct. What are you grams/cylinder and what hertz is it idling at?
Airflow=torque and the ECM is trying to hit a torque number. It will do what it needs to do so even if the engine idles with negative timing values and messes with the throttle blade.
Last edited by Redline MS; 03-05-2016 at 09:25 PM.