Originally Posted by
chevyspence
You were right, sure enough, b4003, 4, and 5 were responsible for that floor I was hitting. So to me it seemed like b9021 really is a transient value and in my case did some screwy things, and putting it back to stock and lowering the b4003,4,5 tables did the trick nicely.
I was trying to do a simple math "default min PW" (1.28) + "small pulse adjust" (0.077) = 1.357 at steady state should be my min achievable pulse width and it didn't seem like I was hitting that at 1.66, but that obviously didn't correlate and must be other factors at play behind the scenes. I guess the transient table must add some small amount too even at dead steady state or something. Is there something I was missing that you picked up on, or just knew that from being there before?
With the "Injector Base Pulse Width Bank #" {GM.IBPW#} pid actually being the final or resultant pulsewidth, are there any other injector pid's that I should have been using to see that I was actually hitting those table limits? I think I have this particular car sorted out now, but just curious for future reference of identifying when the minimums have been hit to know when I absolutely need to deviate from correct supplied injector data.
Thanks!