Dasauto

So as some of you may remember, I was having some misfire issues on my passenger side bank, all three cylinders. Slight shutter and check engine light. Did not occur under boost, most of the time it was at highway speed just cruising.

Pulled all codes and besides the misfire codes (multiple and then the specific cylinders)...........there was also a primary 02 sensor, no signal code. This code only came up once as trouble code and once as pending trouble code.

Changed out that 02 sensor and I'm back in business. Car is running great. Love it when a repair costs under $100. Just a FYI for any of you in the future who have misfires on one bank of the engine. Thanks

kjb55

Great information. I would have never pegged the 02 as the fault.

Dasauto

I was surprised too..........but the fact that it was always the passenger bank and the fact that my air filters were clean made me suspect it. If one or 2 of those cylinders was misfiring I would have thought plug/coil/wires.

Here is sensor in question. Into the garbage it goes. Appears to be original, 10 years old, 55K miles.