1990 ZR-1 Issues

[Paul Workman]

Originally Posted by frantinoro

Any idea what to test next? I hooked up my scanner and the left bank is running lean (BLM iand int Anmrr at around 150)

IF the right side is running LEAN, the scan of O2 sensors would be of interest next.

-the cross counts and the sensor voltage would be go to k ow.

But, the proof can be accomplished too by swapping the O2s right to left & left to right and see if the lean condition follows the respective O2.

Note of concern: high KNOCK counts and burned valves can result from a lean condition. You wouldn't want to be driving it in that condition (lean on one side).