LEMON Manuals: Even more car manuals for everyone
Home >> American Motors >> 1982 >> Spirit Base, 2D Hatchback, 2.5L Eng VIN B, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Computer Controlled Catalytic Converter >> Diagnostic Procedure >> Notes

Diagnostic Procedure: Notes

NOTE: If vehicle exhibits performance problems and no codes are flashed, refer to System Performance Chart. Components recorded by trouble codes generally do not cause performance problems when no codes are stored in ECM memory.

The C-4 system should be considered as a possible source of trouble on engine performance, fuel economy and exhaust emission complaints ONLY after normal checks, which apply to a vehicle without C-4, have been performed. Diagnosis of C-4 system consists of 3 check sheets: Diagnostic Circuit Check, Driver Complaint Sheet and System Performance Check. Any of these check sheets may lead to a chart for locating source of problem or indicate no problem on that sheet and refer to another sheet. If there is no trouble in C-4 system, all 3 check sheets will result in that conclusion. The check sheets and their procedure are as follows:

scientia non olet · About LEMON Manuals