Hi allWhen I drove from job I tried to disconnect first O2 sensor. No DTC, only the second lambda was leading the ECM and on the first was set up about 0,3-0,4V.
I read some data by scope and here are (all at idle speed, engine warm up, no load, fun/heater OFF, light OFF):
Camshaft vs Crankshaft sensors
Camshaft vs Crankshaft sensors detail
Coil-On-Plug CurrentSupply vs AmplifierEarthVoltage
COP CurrentSupply vs SupplyVoltage
COP CurrentSupply vs TriggerSignal
LambdaSensor (O2) vs heating 2minutes (WarmUpEngine)
LambdaSensor (O2) vs heating detail
I think that the O2 sensor is changing slowly the voltage range, but it works. Maybe the heater is up.
During traveling home I control the O2 S1 and O2 S2 by Torque and they both works.
I have to measure the CoilOnPlugs... Because these signals mentioned above are all OK.
Edited by: homole