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Home >> Mazda >> 1991 >> Protege L4-1839cc 1.8L SOHC >> Repair and Diagnosis >> Powertrain Management >> Emission Control Systems >> Testing and Inspection >> Flow of Diagnosis
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Flow of Diagnosis






1. Always check for applicable Technical Service Bulletins.

2. Don't overlook obvious problems such as spark plugs and or wires. See CHECKING THE BASICS under TESTING PROCEDURES.

3. Complete the DRIVEABILITY and REPAIR HISTORY worksheets.

4. Determine correct course of action.


Driveability Worksheet:





DRIVEABILITY WORKSHEET

Service History 1:




Service History 2:





REPAIR HISTORY WORKSHEETS