***I added the stock GMPP file and the file with idle set lower, but it still stays at 975rpm.***
IN READ GMPP.hpt
IN READ GMPP IDLE SET LOWER 1.hpt
Even when tune is changed to a lower commanded idle rpm.
Also when using the Scanner and the bi-directional controls the idle won't go below the preset 950 rpm that the GMPP tune came with.
Has anyone dealt with this before?
I've set all the idle minimums to 650 and commanded idle to 750 and even lowered the RAF idle tables down real low.
This is the 2nd GMPP crate harness and PCM I've had do this. It sux that we can't idle down to hear the nice cam lope at idle.