Finally. someone with the same problem
I have the exact same problem, I have been through absolutely everything. My car works perfectly with every other chip. Bob Bailey has been pretty helpful, but so far no dice.
-Cam sensor in a bunch of positions including 180 out, no change
-Tried FP from 35-55 psi, no change
- swapped 3" lt1 maf off my Montanna, no change
- messed with maf translator - settings for 3 and 3.5, no change.
- altered blm parameter up and down, no change
- using 30 lb Accel injectors, brand new
- reset IAC and TPS many times trying lots of IAC and very low IAC in conjunction with high and low TPS settings. Bob suggested pushing TPS all the way back to limit its upper voltage value. Eventually bought brand new TPS from GM, no change
Your AF is shown as half because the chip uses it to give you the maximum of 512. Your 2-3 is really 4-6m my car is 5 with a conventional chip, key on not running.
In all cases if I feather the throttle from a stop, the car feels fine. Is that true for you?
Try TurboDave's settings, but I am guessing the problem won't go away.
I was convinced the problem was a lean tip-in, so Bob redid the chip with more enrichment. The problem got much worse, the car used to just bog and go, now it can outright die from a dead stop. Like you my car works beautifully otherwise.
I did notice that immediately after coming to a stop the IAC sits at a slightly higher value for about 2 seconds before dropping the idle down to its final value. During this slightly higher idle, the tip-in problem is almost gone. Try this on your car. On my car during cold warm-up before closed loop, the tip-in is much much better. The car is quite rich but it is odd.
What I don't get is the fact that the car is totally fine with every other chip I have, an old SuperChip, and old JC chip and a Thrasher.
I hope between our two cars Bob can figure something out. My car can't really be driven safely like this. I have had to yank it out. I love all the features, I hope there is a solution.
