Re: Obs de-fueling
X2-- pull the chip and run on stock tuning. IMO
, 2500 psi
is not great but ok. What is the duty cycle @ 2500?
It runs up good then just falls back. TPS
is an interesting thought and the sudden change could make sense. Dont agree on oil-- if it was oil, it would have done it from day one-- the pump wouldnt fail over night. Electrical stuff fails over night.
Was the tuning written for the injs? perhaps the tuning is not happy...? does it do it in all of the tunes?
To me, if it goes to wot
clean on stock tuning and holds it (it should go to 20-23psi), we're getting somewhere to confirming that its not TPS
. It should still command 2500 psi
on stock tunes as well.
last question, when you installed the d66, did the oring get back on the turbo outlet? check for boost leaks as well.
2000 F250 CCSB-- GT4294R, 250/100s, Dahl/Fuelab, PHP, scan gauge, stock 17* pump
1994 F250 4x4 SC (sold)
1997 F250 CCSB 2wd (sold)