Running rich under boost.... Maf translator basic

[mk3-4-me]

Ok so I got my maf t basic to the right AFRs and VF for cruising around. But now wen I boost it goes really rich, 10:1 AFRs. I have the settings to make it lean and at -35% fuel on the AUX knob, but nothing. It's like the knobs wont control it.

When I was just boosting 6 psi, I could control it great. I had the AFRs at around 11.5:1, but now at 10+ psi it goes Rich.

Any of you have this problem with the maft basic?

 

[mk3-4-me]

Do you think putting it to a bigger injector size would help? I have 560s, but if I say I have like 580s or something, than won't it think it doesnt need as much fuel from the "bigger" injectors, which then may fix the problem?

 

[mk3-4-me]

Would Fuel pressure have anything to do with it? I have it set to 41 with the vacuum off. Could I maybe lower the FP or something?

 

[supraguy@aol]

I would try lowering Fp by maybe 3 or 4 psi, and just see if there's a benefit.
My pressure is set ~38psi.

 

[mk3-4-me]

I figured it out. I didn't have the purple wire hooked up to a switched 12 volt. I read it in the manual as If I had NOS or meth or sonethin, that the purple wire would trigger it to go on above 8-ish psi. But it actually adjusts the entire fuel curve above 8 psi or so.

But ya I can control it now. Thanks!!