This is a follow up to an earlier question I had. Here's the background:
Had the CEL (flashing) & Trac off lights come on with multiple codes for O2 sensors and random cylinder misfiring.
I replaced the O2 sensors and reset the trouble codes, thinking possibly a bad signal from the sensors were causing the misfire (now I think it was probably just the opposite). Yesterday the CEL only came on flashing again and the code showed only cylinder 6 misfiring. I had a post yesterday asking the orientation of the cylinders as I guessed it was either a bad coil or plug.
Started the car this morning and the flashing CEL and the Trac off light came back on. Trouble codes now showing misfiring on cylinders 5 & 6. By the way, it is misfiring at idle and all speeds. Car has 95K miles and original plugs and wires.
As there is a separate coil for each cylinder, I am guessing that it is not the plugs or the coils?? (although the plugs are due) Reviewing the forums I have seen some suggestions that the cylinder head water temperature sensor may cause misfire problems, however it wasn't clear if there were separate sensors for each pair of cylinders or not? To be honest, I am not even sure what the or those sensors look like or where they are located. I have been fortunate not to have any problems with the car until recently so I just learning my way around this engine.
Can anyone let me know if I am on the right track or suggest another possible problem. If I am on the right track I would appreciate some info on the temp sensors.