Ford Repair Questions? Ask a Mechanic for Answers ASAP
Hello! Your next step would be to check the ground signal trigger from the PCM to the ignition coils. If the PCM is not pulsing the coils to fire, the PCM is bad and will need to be replaced. You are welcome.
You can use a test light to check the ground signal trigger. You would just hook it up backwards to check for the ground signal trigger.
Use a simple test light like this one
The aligator clip goes on battery positive while the tip of the test light gets touched to the signal wires at the ignition coil.
Blue/brown wire and the white wire
Here is a wiring diagram. The ignition coil is on the bottom of the diagram.
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The test light will flicker very dim if there is a ground signal trigger on that circuit. Be sure you do this at night or in a dark garage as this flicker is hard to see. If no pulse, the PCM is bad. If there is a pluse but no spark, then the coil is bad.
It's Amedee from just answer. I am just checking in to see how things turned out and if you need further assistance. Please let me know.
It is very possible. I would go right to the PCM connector and see if the PCM is grounding those circuits while cranking. If so, then yes, something is disconnected or left loose between the PCM and ignition coil.
Sounds good, keep me posted!
Hello! It's Amedee from just answer. I am just checking in to see if you have any further questions or need any further assistance? If so, I will be happy to help! Please let me know!
Thats correct. The TPS was shorting out the PCM. THis was preventing the no start condition.