So it's been a little while since I've done one of these. Normally they aren't that big of deal. First off I know NOTHING about this car. Came to me from a dealership who knows nothing about it. Car has a unknown cam, LT, no cats, CAI. Car idles, drives good.
I'v having several issues from excessive false spark knock, MAP dropping out, pig rich after 5800 and some other things.
Yes the knock sensors are turned off right now, no they won't stay like that. I turned them off to be able to make a full pull. Timing is very soft so I'm not worried about hurting it when I'm trying to figure the fueling out.
The VE table at idle, cruise, part throttle looks really similar to that last few of these I've done. However at WOT to get the fueling where it needs to be my VE table is in the 140's. No boost here...just NA.
The injectors are stock. I'm guessing the fuel pump is stock.
I verified fuel pressure on the dyno and it starts out at 58psi and drops down to 55 at the end of the pull.
New WB02's on the dyno, calibrated, they match from bank to bank. Bank 1 is logged on the dyno, bank 2 in HPT.
At first I was almost 100% sure the fuel pressure had to be dropping out at WOT but to my surprise it wasn't.
The injector duty cycle IMO is high for the power it's making, 450ish at 5600.
Either I am just completely missing something or it has some issue that I can't figure out. I've attached the latest tune and pull.
Thanks for any insight. Normally I do OK with these cars but this one has kicked me in the balls.