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Home >> Mazda >> 2002 >> Tribute LX, 4WD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - Self-Diagnostics >> Diagnostic Tests >> DTC P0201, DTC P0202, DTC P0203, DTC P0204, DTC P0205 Or DTC P0206 >> Possible Causes

Possible Causes

DTC P0201-P0206 indicates fuel injector does not operate electrically even though the harness assembly and fuel injectors test satisfactorily. DTC number indicates cylinder number. Fuel injectors are electrically operated solenoids. Injectors open and close a constant number of times per crankshaft revolution. Amount of fuel is controlled by adjusting injector pulse width. Injectors are normally closed and opened by 12-volt VPWR from PCM power relay. PCM controls PCM power relay ground. Possibly caused by faulty fuel injector driver inside PCM.

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