onefstek

quick set up background.

walboro fuel pump
golden eagle fuel rail
Sx fuel pressure regulator
AEM wideband gauge

And here is my problem.

Moving the screw on the FPR clockwize will increase fuel pressure, therefore the air fuel ratio should go RICHER, and vice versa.

But in my case it does the absolute opposite. The fuel pressure goes up but the car runs LEANER.

The wideband is good, I checked that.
The FPR is good, no leaks in the diaphragm
Changed the fuel filter

Im so stumped that I don't know what else to do.

any imputs will be considered. thanks so much.

onefstek

hmm........ no one has any idea's. hmm......

ladysman

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by onefstek &raquo;</TD></TR><TR><TD CLASS="quote">quick set up background.

walboro fuel pump
golden eagle fuel rail
Sx fuel pressure regulator
AEM wideband gauge

And here is my problem.

Moving the screw on the FPR clockwize will increase fuel pressure, therefore the air fuel ratio should go RICHER, and vice versa.

But in my case it does the absolute opposite. The fuel pressure goes up but the car runs LEANER.

The wideband is good, I checked that.
The FPR is good, no leaks in the diaphragm
Changed the fuel filter

Im so stumped that I don't know what else to do.

any imputs will be considered. thanks so much. </TD></TR></TABLE>

Stock injectors?
Management System?

onefstek

1000 cc injectors, apex-i power fc standalone.