2001 Hummer H1 error code PO126
#11
07-08-2022, 06:06 PM
How did you read the error code
Do you have a modified obd 2 connector wired in? If so can you send me the wire diagram. I have the components but don’t know how to run the wires into the proper holes on the J1 6 pin connector to the OBD 2 12 pink connector.
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