Engine

Engine Data Values (1 Of 2):

Engine Data Values (2 Of 2):

SCAN DATA VALUES
If after completing the on-board diagnostic system check and finding the on-board diagnostics functioning properly and no diagnostic trouble codes displayed "Typical Scan Values" for the appropriate engine may be used for comparison. The "Typical Values" are an average of display values recorded from normally operating vehicles and are intended to represent what a normally functioning system would display.

A SCAN TOOL THAT DISPLAYS FAULTY DATA SHOULD NOT BE USED, AND THE PROBLEM SHOULD BE REPORTED TO THE MANUFACTURER. THE USE OF A FAULTY SCAN TOOL CAN RESULT IN MISDIAGNOSIS AND UNNECESSARY PARTS REPLACEMENT.

Only the parameters listed below are used in this manual for diagnosis. If a scan tool reads other parameters, the values are not recommended by General Motors for use in diagnosis. If all values are within the range illustrated, refer to Diagnosis by Symptom.