Possible causes – Faulty fuel composition sensor– Fuel Composition Sensor harness is open or shorted– Fuel Composition Sensor circuit poor electrical connection Tech notes Replaced Fuel Composition Sensor When is the code detected? The ECM detects that the fuel composition
Possible causes – Faulty fuel composition sensor– Fuel Composition Sensor harness is open or shorted– Fuel Composition Sensor circuit poor electrical connection Tech notes Replaced Fuel Composition Sensor When is the code detected? The ECM detects that the fuel composition
Possible causes – Faulty fuel composition sensor– Fuel Composition Sensor harness is open or shorted– Fuel Composition Sensor circuit poor electrical connection Tech notes Replaced Fuel Composition Sensor When is the code detected? The ECM detects that the fuel composition
Possible causes – Flexible Fuel (FF) sensor to Vehicle Power (VPWR) circuit harness open or shorted– FF to VPWR circuit poor electrical connection– Open in FF sensor signal circuit– Short to ground in FF sensor signal circuit– Fuel contamination –