Join Date: Jul 2007
Location: sparks, nv
Feedback Score: 0 reviews
Opinions on scanner data
I have been trying to diagnose a lack of power. Symptoms are low power, lower fuel economy and black smoke. Truck is a 95 7.3 auto 2wd 4.10 gears. Only mods are DIY intake, downpipe to 4 inch straight pipe, and a trans shift kit. Looking at all the scanner data the only thing that I could see out of the ordinary was low boost. On WOT max boost was 13 psi on the scanner.
On cold start up
MAP psi is 14
EBP is 20 psi.
After a short hot lap and once the truck is warmed up at idle
MAP psi is 13
EBP is 13.
Before the truck warms up EBP stays roughly 6-7 psi higher then MAP. After the truck is warmed up EBP always stays around 1 to 2 psi higher then my MAP psi.
I am thinking I have a pre turbo exhaust leak, or are those readings normal?
1995 F350 daily driver, gold, extended cab, DRW, auto, 152,000. DIY napa intake, 4 inch exhaust w/downpipe.
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