What does the code 45 on a GM ECM mean?

What does the code 45 on a GM ECM mean?

This is the description of a Code 45 as set on GM products It is an indication of a rich 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 is the code 45 on a GM oxygen sensor?

This is the description of a Code 45 as set on GM products It is an indication of a rich 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.

When to use code 45 on a car?

Test description: 1.) Code 45 is set when the O2 sensor signal voltage remains above .7 volts for 30 seconds or more and in “closed loop”. 2.) Engine time after start is one minute or more. 3.) Throttle position between 2 % and 20 %. Diagnostic aides: 1.) The code 45 for rich exhaust is most likely caused by one or more of the following: a.

Where can I Find my GM trouble code?

If you own a 1982 to 1995 GM car or truck, you just might be able to read your trouble codes for free! If you have a connector like this under your dash, read on… (note: this connector may have a black plastic cover over it, so also look for a cover shaped like this, sorry for the messy wires here)

What are the most common GMC Safari problems?

Created with Sketch. Tap the to learn more about the most common GMC Safari problems. The engine may stall when the engine is warmed up. The AC compressor may seize resulting in loss of cold air from the AC vents.

This is the description of a Code 45 as set on GM products It is an indication of a rich 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).

This is the description of a Code 45 as set on GM products It is an indication of a rich 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.

Test description: 1.) Code 45 is set when the O2 sensor signal voltage remains above .7 volts for 30 seconds or more and in “closed loop”. 2.) Engine time after start is one minute or more. 3.) Throttle position between 2 % and 20 %. Diagnostic aides: 1.) The code 45 for rich exhaust is most likely caused by one or more of the following: a.