smokeshow

iTrader: (16)

All correct, andy lol... but i am referring mostly to the fact that it says its making near 23psi. Nevermind the other bullshit, how is that even possible? Lingenfelter was surprised when they heard it was making 20...and then i see 250kpa on the scanner today.

AKlowriderZ71

iTrader: (22)

Is there a mechanical boost gauge on this thing, to verify that the MAP sensor (or wiring) isn't on the fritz??

smokeshow

iTrader: (16)

No mechanical boost gauge. I want to put one on after seeing that number, though... The most interesting part is the corresponding drop in fuel pressure seems to support the MAP sensor's claims.

AKlowriderZ71

iTrader: (22)

Does this truck have a fuel pump control module?

smokeshow

iTrader: (16)

It does have the FPCM. Also has the handy little bleeder valve in the fuel bucket that prevents fuel pressure from exceeding around 70psi. So at full boost it drops below 50 every time.

AKlowriderZ71

iTrader: (22)

Makes me wonder if the FPCM uses MAP sensor data to control fuel pressure. I bet it does, somehow. But...... I have no idea how that helps.

But it does bring me back to the question of, is the MAP sensor info correct?

Area47

250kpa @ 2700
-9 degree's of timing
desired vs actual fuel pressure
cmd afr vs actual

thats just off a quick glance.

smokeshow

iTrader: (16)

Not sure if the MAP is correct. Should be finding out today... And Area47, that desired pressure is EPC desired pressure, not fuel. But yes overall, pretty fucked up. lol

Area47

ah, i see.

whats going on with the commanded afr vs the wb?!?!

smokeshow

iTrader: (16)

Wideband is a flatline lol. There's nothing in the input.