: heater on bench 1?

02-26-09, 10:18 AM
i have changed the oxygen sensor 1 of bench1, like 3 times, and always present the same code, HEATER SENSOR 1 BENCH 1.i have inspect the line, and the heater power line, negative and positive, + the signal and ground, are good from the pcm. at least on the end connector to the A/F sensor.

how i can solve this matter?

02-26-09, 11:57 AM
I think you mean Sensor 1 BANK 1. Are you using an A/C Delco sensor?