Intermittent P0132 (O2 1 bank 1 seeing rich mix) [Archive] - GrandAmGT.com Forum

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lone_wolf025
07-28-2008, 12:23 PM
I'm trying to figure out some potential reasons for my intermittent o2 sensor issue. Twice now after driving a long trip (several hours on the highway) and then switching to regular street driving I've seen this code pop up. Both times after a few ignition/driving cycles it clears itself.

So, most common problem is a short in the heater wiring for the o2 sensor, or frayed wires. The wires are fine, and if the heater was shorted out the problem wouldn't just fix itself. Other possibles (according to autozone's printout) are fuel delivery system problems such as a bad regulator. Any other suggestions that I'm over looking? Vehicle no longer has an egr, but that wouldn't cause an overly rich mixture on long cruising would it?

I'm thinking its the sensor, but I'm not willing to drop $90 on an o2 sensor unless I KNOW its bad. Any thoughts?

roadie
10-22-2011, 02:22 PM
so what was it?