My car runs 2 sensors one for gauge and ecu. Car is a z1 turbo conversion with stock ecu. Just had a reflash of ecu and now car runs 10.5 at wot. Has a rough idle. I need more hours (just haven't had time) to get a good plug check to see if I'm running as rich as my afr reads. Question is a 2 wire O2 sensor (the ecu) self heating? I just want to eliminate a bad sensor as the potential problem as I was running leaded race gas last and now with new flash am running unleaded 100 octane. I did the soaked gas rag test on the gauge sensor (6 wire) it goes full lean and full rich as expected (it's an aem gauge). I found the 2 wire sensor had a burnt section of wire as it must have touched the exhaust and cut that back and replaced but prior to repairing I did a continuity check upstream of burnt wire to harness pin and it was ok. Just wondering if anyone had any thoughts as its bugging me. I realize I need to get some testing in to see what my afr readings will be at various loads and if needed can swap out the sensors or have ecu reflashed...........not sure what else it could be. Thanks in advance for any feedback or advice.
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