having the exact same issue with a 07 F150. changed to a 35" tire and no matter what I make the tire rev per distance the speedo always reads 4-5 mph low at highway speed. used two different GPS to...
Type: Posts; User: camarokid
having the exact same issue with a 07 F150. changed to a 35" tire and no matter what I make the tire rev per distance the speedo always reads 4-5 mph low at highway speed. used two different GPS to...
your using your stock 7.4L knock sensors? swaping to the 8.1L knock sensormay be a good idea.
the card type MAF should work fine
can you post your tune? a friend has a 411 pcm on his 454 one ton truck. it seems to pick up a lot of false knock. the timming table is much lower than the stock ecm was.
im also curious is the...
I checked out the LSJ guide in your sig and the links to the Saturn site. I fell pretty confident on what I need to do and how to get the results I want. just gotta order another wideband.
do...
thanks for looking, I went back and looked through the first log I did (atleast 30 minutes). it was right under the 11,000hz fail high (saw 10,7xx at 199kpa). these do have 2.5 bar map sensors...
P0101 mass or volume air flow A circuit range/performance
P0172 system too rich
90K miles has GMPP stage 2 kit and stage 2 tune as far as I can tell
the STFT and LTFT spend most of the time...