Can't get my O2's up...

[jsta6]

TE44
22lbs boost
SMC alchy
Reds 93
009's
Walbro 340 fuel pump
adj fpr
FP 50PSI vac off
no knock

I can't get my O2's above 730. Turning up the fuel pressure has no effect on the O2's.

Fuel pressure does go up with the boost. For example, if I am at 50PSI at idle, and I run 22lbs boost, the fuel pressure goes up to 72PSI.

Are low O2's normal for alchy or something?

 

[Slow91z]

Is it knocking??? If not I wouldn't worry about it.

But just to take a shot in the dark as to why this may be happening, the stock narrow band O2 is very senstive to EGT and pressure as well as O2....Therefore my theory is since alky drops your EGT that is probably why your O2 is reading low.

 

[JaBoT]

Unless BLM cell 15 is locked in your chip the computer will automatically compensate for fuel pressure changes at wot using blm cell 15 for the calculation. That's probably why you’re not seeing a change.