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Home >> Mazda >> 1997 >> B4000 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Theory and Operation >> Engine Controls - Theory & Operation >> Computerized Engine Controls >> Input Devices >> Octane Adjust Shorting Bar

Octane Adjust Shorting Bar

The octane shorting bar is used to retard spark. A diagnostic trouble code will set if octane adjust shorting bar is removed or, if a open circuit exists. Octane shorting bar is located right rear or engine, near PCM.