Water In Fuel Sensor Cummins Isx

The sensor circuit of the presence of water in the fuel voltage below normal or short circuit on the low voltage circuit.

Water in fuel sensor cummins isx. When the code for the water in fuel sensor popped up it also triggered an engine coolant temperature code to flash as well. The wiring for both the coolant sensor and fuel water sensor namely the ground is shared. Intake manifold air temperature sensor 5. The water in fuel sensor is attached to the fuel filter.

The oem supplied fuel filter is located on the intake side of the engine. Ecm cooling plate 2. It was obvious that the coolant system was operating normally leading to the first. The ecm determines that the voltage in the sensor signal circuit is less than 0 05 v dc for 1 second.

Egr connection tube 10. In the forum you will find an informative tech area a place for member s journals vendors with special members pricing and more. Fuel lift pump 9. Intake manifold pressure sensor 7.

When the water collected in the fuel filter covers the sensor probes the water in fuel sensor pulls the 5 volt reference voltage to ground indicating high water accumulation in the fuel. Recirculated exhaust gas temperature sensor not shown 11. Water in fuel sensor bypass igotacummins is an online forum and community for all cummins turbo diesel enthusiasts. Gauges really helped me out with this one.

The water in fuel sensor is integrated into the bottom of the oem supplied suction fuel filter. First time replacing one of these gear pumps in a very long time. Service network cummins engines are backed by the strength of cummins global network of over 5 500 service locations worldwide. Isx automotive with cm870 left side view 1.

The water in fuel sensor is attached to the fuel filter. 428 water in fuel wif sensor circuit 429 water in fuel wif sensor circuit 431 idle validation switch choice. Which means even with condensation from cold fuel pumped in to a hot tank it would separate and slowly fall to the bottom of the tank especially as the movement of diesel would wash it off the sides as the vehicle moves. For cummins isx fault codes on later models 2003 up use isx fault codes 2003 later go to all cummins fault codes leave isx fault codes and return to home page.

I found out some interesting information about this code involving the fuel water separator. The electronic control module ecm provides a 5 volt reference signal to the water in fuel sensor. Water is heavier than diesel so in a practical sense you should suffer problems prior to the 50 or 60 gals left in the tank.