wantsum410

iTrader: (5)

I just finished a '04 5.3/AUTO setup in a 1957 p/u ,all stock with pedal & all from the donor tck.Well if you try to accelerate slowly it seems to hesitate from the pedal action to the tb.If you hammer it there is no noticable hesitation.
Fuel pressure us 58psi at the rails & all else runs good.Thanks for any help .Harness is all new Painless .

psiconversion

iTrader: (5)

What tune is in the PCM?

Jon
PSI

wantsum410

iTrader: (5)

Stock tune is in the pcm ,was sent to Painless for free delete of all egr ect.The rest is the stock tune from the donor tck.

wantsum410

iTrader: (5)

ANY IDEAS....What do I need to look for or in HP Tuners .