I'm looking to rebuild my Q-JEt and want to replace all the unworking sensors. How do i test the computer to find codes and what do they mean.

 

do a search about how to retrieve the codes. Then when you get the codes do a search and you will be able any info you need.

 

4901,

Or you can download this file:

GM Error Codes.pdf

 

For me, a big malfunction codes description is here:

www.GNTTYPE.org , "click" the arrow at "Resources", then select "Trouble Code Desc."

It includes code # and its description, conditions for setting this code and typical causes for each code: A complete code encyclopaedia.

Regards,

Denis V.