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The automatic control module (ECM) sees the approximate O2 sensor voltage for lender 1, sensor 2 above 1.2V when the ECM commands the fuel type to target lean based on the respective engine bank.

The ECM detects a high voltage problem and the indicator turns on engine checks.

Other Use Oxygen Sensors The ECM attempts to control fuel injection using their readings.

After checking the sensor and correcting the problem, the engine may run lean and misfires may be delayed. Confirm will light up

Probably the indicator is right Check engine.

You may experience engine performance problems depending on engine failure or rich mixture.

Scans document codes and freeze frame resources, then cleans up error checking codes.

Tracks data from the O2 sensor to get an idea of ​​the fast change in voltage between low and high compared to other sensors, to help you.

Checks the wires and harnesses of the O2 sensor for corrosion in the connectors. what

Checks that the O2 sensor is not damaged or contaminated with fruit juice.

Checks exhaust gases before they leave the sensor.

Perform manufacturer specific screening tests for further diagnosis.

Bank 1 O2 Operator 1 can be used to diagnose an O2 sensor for Bank 2 1 by comparing the two sensors. The performance must be almost unbelievable, except that the 2 sensorsShould have more low O2 readings because the switch readings must burn excess electricity and oxygen.

Make sure the O2 sensor is not contaminated with coolant or that there are no engine leaks.

Check the catalytic converter for blockage or damage, if this could cause erroneous sensor readings.

O2 sensor output current can be related to an exhaust duct break, which can cause superior O2 sensors to provide output voltage.

The ECM may not properly control the engine’s air-fuel ratio, resulting in switch fouling and excessive fouling in your current engine with fouled spark plugs.