My car has recently developed an intermittent issue when shifting at high rpm during WOT. When it happens it feels very similar to the PPRV stumble. Normally it only happens after I have already done a pull recently or if I have been driving a 30-40 minutes before I do a pull. For example I went out today with the intention of logging the issue, however on the first pull I tried, it didn't do it. So I slowed back down and tried again. The second time it did.
On the log when the stumble happened I noticed the following things:
Battery voltage= 13+
Fuel pressure= 2-5
FPDC = 50
A/f = 18
Of course as soon as I feel this I let out.
The fuel system consists of:
Stock injectors, stock pumps, PPRV delete, BAP pre FPDM, and lethal wiring upgrade.
Normally during WOT the FPDC peaks at .42 and fuel pressure stays around 40.
Sooo after all that my question is are my pumps going out, or is my FPDM? Or is it something completely different?
Thanks in advance
On the log when the stumble happened I noticed the following things:
Battery voltage= 13+
Fuel pressure= 2-5
FPDC = 50
A/f = 18
Of course as soon as I feel this I let out.
The fuel system consists of:
Stock injectors, stock pumps, PPRV delete, BAP pre FPDM, and lethal wiring upgrade.
Normally during WOT the FPDC peaks at .42 and fuel pressure stays around 40.
Sooo after all that my question is are my pumps going out, or is my FPDM? Or is it something completely different?
Thanks in advance