When this happens, the fuel pump driver module will set at a default usually set at 100 % duty cycle.
2002 ford taurus fuel pump driver module location code#
Therefore, if the duty cycle is below or higher than the targeted range, it will set a code related to the fuel pump secondary control circuit. Using this duty cycle range, the computer can determine when to shut off or increase the fuel pressure for optimum engine performance.
By using a fuel sensor located in the fuel rail, the engine computer can regulate the fuel pump pressure by monitoring the fuel pump duty cycle. Ford evidently is aware of this problem, or they would not have revised the wiring harness and given special installation instructions to their technicians.The fuel pump secondary control circuit deals with the fuel pump driver module (another word for computer) which is use to regulate the fuel pump pressure. We are convinced that this is a manufacturing defect and that the possibility of more related accidents increases as current vehicles age. This wiring problem should be investigated as a possible cause for any Ford Taurus fires, or accidents involving loss of power. I am concerned that this problem could not only cause complete vehicle failure (loss of power steering and brakes) at any speed, but also that the possibility of a spark inside the gas tank is not out of the question. This is an obvious manufacturing defect and is not limited to only our car. The wires were damaged due to the way the fuel pump was assembled within the gas tank. Other wires also show signs of wear, but are not yet worn through. An investigation revealed that a wire to the fuel pump inside the fuel tank had its insulation worn off down to the bare wire, and had shorted out. The mechanic suspected a problem with the fuel system. The engine would run roughly, stall, and surge, but the problem was intermittent, and gradually became worse. The fuse to the fuel pump repeatedly blew, but no other problems were evident each time the car was towed to the garage. Over the past two months, the vehicle stopped dead in traffic 5 times at various speeds with no advance warning. We believe this is the same problem that the Ford motor company identified for the 2000/2001ford focus program 03n01.ġ997 Ford Taurus wagon. We had these same symptoms in Sep 05 odi number 10141907. We called the dealership the next morning and explained the symptoms and they replaced our "fb sender and pump asy" 2f1z-9h307-fb (replaced fuel pump) and our "in line fuel filter" yf1z-9155-CA(filter 1767). Each time she was able to make it to the side of the road, wait about 5 minutes and try to start the vehicle (didn't always start at first) she was able to travel only a couple of miles. She called a tow truck to take our vehicle to the dealer. It happened five more times as my wife was driving before she could get into a safe area. There were no indications there was anything wrong with our vehicle it just went into these symptoms.
Driving along the interstate at 70 mph and the car started slowing down and lost complete power all the lights on the dash came on no gas pedal and no steering.
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