c0de7477

hey guys. i posted a while back about MAF codes and my intermittent boost issue.

well, i got rid of the maf codes, but im still having boost issues.

itll run completely fine, but then itll just randomly not boost past 0. sometimes if i let off the gas completely and then give it gas again, it'll fix it.

i actually had it fall on its face when it was at about 10 psi. the by pass valve just opened. not throwing any codes at all.

im open to suggestions. could the by pass valve not be holding up to the ZFR ? i have a forge on there with the green spring, and ive recently taken it off and greased it, because it's what i suspected before.

c0de7477

Also, it's crazy hot outside, like 105+. My car was tuned in a place thats usually 70 to 80

c0de7477

-/p

c0de7477

U guyz are awezome

Shanedude

Spray MAF and MAP sensors with sensor cleaner.

Boost leak check.

Possibly the GMS1 wiring.

Possibly wrong tune? Is it tuned for the stock or 3bar sensor? Heard this will cause p0236 often. Is that the code your getting?

c0de7477

I have stock map sensors, its tuned by trifecta so 3 bar arent needed, but i recently cleaned my maf and map sensor. I was popping p0101 and some other random maf codes like insufficient maf activity and stuff leading me to believe the maf was bad itself, so i replaced it and it didnt fix it. I took all my charge piping and intercooler off and put it all back on and the codes went away.

maybe the map sensor is bad?