2017-10-10
Engine stall
Flexible Fuel (FF) sensor to Vehicle Power (VPWR) circuit harness open or shorted
FF to VPWR Vehicle Power Supply Voltage) circuit poor electrical connection
Open in FF sensor signal circuit
Short to ground in FF sensor signal circuit
Fuel contamination
Fuel Composition Sensor: Fuel composition sensor monitors the composition of the fuel (ethanol%, methanol% etc) that is being used for combustion. Problem leads to poor fuel economy
Do a visual check of all the wiring and connections to the sensor, checking for breaks in the wiring or loose connections
Disconnect the connection to the sensor and checks to see if the sensor is testing within specifications
Take a fuel sample to compare the actual temperature of fuel to the sensor input
Test the diesel fuel heater for proper operation to make sure it is working to heat the fuel, without overheating the fuel