scanner shows real timing, dynamic, and engine static is base timing.
ECU advances timing even at idle on modern engines.
and moves ! on yours , IIRC the timing in fixed forever, on sports.
via crank sensor pickup ( you can adj. the gap maybe) no DIZZY.
135 is bad rear sensor. H = heater bad, at front sensor #1.
This will lower MPG.
HO2S Heater Circuit Malfunction Sensor 1
500 is VSS, vehicle speed sensor. IT might be bogus code.
that bad heater can even cause leakage for current to the OXY side.
this will make car run real bad.
If car is so bad it is hard to drive , unplug OXY1 front and try that.
car will run a tad rich and be ok.
that is a trick, but you will get a CEL lamp for all OXY codes. 130-135
just to try until get newone.
VSS. I am not sure about that one, I would reset it and see if 500
goes away and stays away.
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