stevo7896

I have a 2002 Mustang no start issue going on .Sometimes it does. Just need to find out which two wires do I connect to .Just want to rule out fuel pump. Im getting 10.37 to 10.57 volts at plug at rear of tank .Just want to make sure I connect power to correct wires.

stevo7896

Just found my answer ,I wanted to share what I found. 2000 mustang v6 no fuel pressure seems like fuel pump not working,
Resolved Question:
2000 mustang v6 no fuel pressure seems like fuel pump not working, fuse is good power going out of inertia switch is good checking voltage to connector behind bumper in front of fuel tank has 6 posts what should they read ? Expert: Ron replied 3 years ago.
Hello and Welcome to Justanswer, My name is XXXXX XXXXX I am here to try and assist your with your question.

In most cases the problem you are describing is caused by a bad fuel pump driver module (FPDM ) .The Pink/Black wire at FPDM pin 9 should show battery voltage, whenever the ignition key is on, from the fuel pump relay and inertia switch.The Black wire at FPDM pin 2 is a dedicated ground for the FPDM. The Brown/Pink wire at FPDM pin 10 is power out of the FPDM feeding the fuel pump. This circuit should show battery voltage whenever the key is in the run position.The Red/Black wire at FPDM pin 3 is the fuel pump ground circuit. This circuit is duty cycled with a ground signal from the FPDM based on the command from the Powertrain Control Module (PCM). Backprobing this circuit with a jumper wire and grounding it should result in 70+ PSI of fuel pressure if there is power to the fuel pump and the pump is good.The white/red wire at FPDM pin 1 is the command signal sent from the PCM to the FPDM. This is a duty cycle signal. When the PCM wants the fuel pump to run, it outputs a 5-50% duty cycle on this circuit. Whatever duty cycle is sent, is a command to the driver module to provide exactly double that duty cycle to the fuel pump ground circuit. For example, a 40% command will result in an 80% duty cycle ground to the fuel pump. When the PCM wants the fuel pump OFF, it sends a 75% duty cycle signal on this circuit. The FPDM sends out 5 volts on this circuit, and the PCM toggles it to ground to create the duty cycle signal.
The Light Blue/Orange wire at FPDM pin 7 is a feedback signal sent from the FPDM back to the PCM. The FPDM normally sends a 50% duty cycle signal on this circuit, which is an "all OK" signal, and sends a 25% or 75% duty cycle signal if it detects a problem in the signal from the PCM, or a problem in the fuel pump circuit.If there is good power and ground to the FPDM, and the duty cycle signal from the PCM is between 5-50% while cranking the engine, but there is no voltage across the wires feeding the fuel pump (with the FPDM connected), replace the FPDM.