When to set code 44 on lean exhaust?
When to set code 44 on lean exhaust?
Code 44 is set when the O2 sensor signal voltage remains below .3 volts for 50 seconds or more and the system is operating in “closed loop”. Diagnostic aides: The code 44 for lean exhaust is most likely caused by one or more of the following: 1.) O2 sensor wire – Sensor pigtail may be mispositioned and contacting the exhaust manifold. 2.)
What does a code 44 mean on an oxygen sensor?
This is the description of a Code 44 as set on GM products It is an indication of a lean mixture as indicated by the oxygen sensor readings. Circuit description: The ECM supplies a voltage of about .45 volts between the appropriate terminals of the sensor. (If measured with a ten megohm DVM, this may read as low as .32 volt).
What does the code 44 on a GM ECM mean?
This is the description of a Code 44 as set on GM products It is an indication of a lean mixture as indicated by the oxygen sensor readings. Circuit description: The ECM supplies a voltage of about .45 volts between the appropriate terminals of the sensor.
What is the circuit description of a code 44?
This is the description of a Code 44 as set on GM products It is an indication of a lean mixture as indicated by the oxygen sensor readings. Circuit description: The ECM supplies a voltage of about .45 volts between the appropriate terminals of the sensor. (If measured with a ten megohm DVM, this may read as low as .32 volt).
What causes a GM OBD trouble code 34?
Due to erratic engine vacuum, other engine performance problems can cause a code 34 to set
What does trouble code 34 mean on a MAF sensor?
Trouble Code 34 indicates that the Mass Air Flow (MAF) sensor is reporting less air is entering the engine than makes sense based on RPM and TPS. The MAF sensor GM Code 34 MAP Sensor or MAF Sensor Trouble Codes› GM OBD Trouble Codes› GM Code 34 CODE 34 – MAP Sensor or MAF Sensor depending on the enigne
What does the OBD code 22 stand for?
GM OBD Trouble Code 22 Throttle Position Sensor Error (Signal Low) The Throttle Position sensor signals the Engine Control Module as to the current position of the engine throttle valve. The current throttle valve opening is based on the driver’s input from the gas pedal.
This is the description of a Code 44 as set on GM products It is an indication of a lean mixture as indicated by the oxygen sensor readings. Circuit description: The ECM supplies a voltage of about .45 volts between the appropriate terminals of the sensor. (If measured with a ten megohm DVM, this may read as low as .32 volt).
