BLM.JPGFirst off i am new to EFI, but been working on cars for 40+ years.

My 94 Firebird with LT1 is stock. Right now it has a major stumble when warm, no stumble when cold. So it seems to be worse in closed loop. Both O2 sensors are new Bosch units.

Runs great at WOT. Idle is a little bit rough, but not bad.

I filed the log with EE Hack.

1st question is, why does the BLM on right bank say, BLM learn, and the other is pulling from the BLM cell 16?



Thanks, Ken