As said above, when changing GEMS ECU you need to re-sync GEMS to the BECM. If you simply swap them without doing any re-sync the spare will NOT work, but the original should still have the matching code to the BECM.Maybe I explained poorly, If I change the ECM, and if it doesn't work, I don't do anything. I exchange the old one back, does it work as before the exchange?
You must have something wrong with how you are measuring them ? The O2 sensors can only swing from 0V to 5V !!Thanks for the answers! I'm testing without O2 sensors.
To clarify or confuse, the O2 values when testing before wandered recklessly, changing from one reading to another within a second, between 1.5 and 320.52V. The wires are fine from the ECM to the O2 connectors, resistance values 0.1ohm. Meter Fluke 365.
+1 on that. Looking at the videos & info out there, $h1tpart basically took a generic OBD reader, and got a 3rd party to make it look like an LR diagnostic. The "coverage" is vague at best, and after a few years they charge annual subscription, so not long before you're paying more than a Nanocom !!I don't think the icarsoft is an exact match for your diag requirements matey
Sorry but to me all those voltages are nonsense as is the % figure. how in a 12 volt system are you going to get 316.25 volts?My multimeter for car use is the Fluke 365, true rms clamp meter.
I measured again with obd scanner, Icar, Ox sensors disconnected.
Results: Bank A Ox 316.25V varies. Bank B 229.90V varies. Ox heater 15.06 Ox sensor heater 46592%.
Ox sensor configuration, No Sure. Idle reference speed 48130. Ox sensor open circuit has been added to the fault codes, which is true, they are disconnected in this test. Bank A and B values are the same whether the Ox sensors are connected or not. Conclusion: Ox circuits are open in the sensors. The heating used to be low resistance, now it is open, so its detection by the ECM exists. Well, the car hasn't been used for 10 years at the mercy of the weather outside... I'll look at those testers you mentioned.
If you haven't tried to measure them, why are you posting them ?If you mean the volts given by Bank A and B, I haven't tried to measure those volts in any way. I think that these wild volts should be interpreted as a destroyed part inside some bigger microcircuit, and then you get an incorrect reading.
I am even more convinced, the ECM declares itself thus destroyed. When there was no warning light or sign of this fault except for a slightly vibrating idle, it just occurred to me how many others have the same symptoms. The car also passed the emissions test during the inspection. with the same Ox sensors.
My multimeter for car use is the Fluke 365, true rms clamp meter.
I measured again with obd scanner, Icar, Ox sensors disconnected.
Results: Bank A Ox 316.25V varies. Bank B 229.90V varies. Ox heater 15.06 Ox sensor heater 46592%.
Ox sensor configuration, No Sure. Idle reference speed 48130. Ox sensor open circuit has been added to the fault codes, which is true, they are disconnected in this test. Bank A and B values are the same whether the Ox sensors are connected or not. Conclusion: Ox circuits are open in the sensors. The heating used to be low resistance, now it is open, so its detection by the ECM exists. Well, the car hasn't been used for 10 years at the mercy of the weather outside... I'll look at those testers you mentioned.
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