Hi Guy's

I am having a problem with This code p0172. It only comes on during autocross events, never on the street. My engine is a 2.2 with comptes sc running hondata k pro. I bought the car already built and tuned . I have 850cc injectors and a factory fuel pressure regulator, no second regulator. My cheap glowflow shift gauge says I idle at 65psi and cruise around 75psi and 85psi with boost. The car did not have this problem last year. The only thing I changed was to put my cat back on over the winter, but after I threw the code I removed it again to see if just had to much restriction and fooled the o2. No such luck same problem with test pipe. Other than the code there are no issues just trying to solve it before it becomes a problem. Any input is apreciated.

THANKS

 

bump

 

Isn't that a code for running too rich? Whats your AFR at?