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Ironmike, Ford Technician
Category: Ford
Satisfied Customers: 3385
Experience:  30 years ASE Master tech L1 . Ford master
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ford: coil pack spark plug when you turn the key..two wires

Customer Question

ford 2000 v10 #2 no spark when running code p0352 new coil pack spark plug when you turn the key on one of the two wires have power
Submitted: 5 years ago.
Category: Ford
Expert:  Ironmike replied 5 years ago.


what wire or connector are you speaking of? the coil or the injector? do you have a multi meter? do you have a noid light or test light?

Customer: replied 5 years ago.
the wire that plugs into the coil
Expert:  Ironmike replied 5 years ago.

We need to see if the circuit is working. Disable the fuel pump or disconnect the inertia switch. Hook up a test light or noid light to the coil connector, crank the engine. You should see the light blink. You said we have power, you can verify 12 volts . If no flash from the coil connector we need to disconnect the connector to the coil and the PCM connector and ohm out the PK/LB wire. we have an open, high resistance or the PCM driver is bad. We should see less than 5 ohms

let me know if this truck ran with this misfire for a long time and if the codes were cleared and KAM reset after the coil was replaced

let me know what you find

good luck

Expert:  Ironmike replied 5 years ago.

when checking the coil circuit from the connector to the PCM the battery should be disconnected. If the meter reads OL we have an open. we are checking the ground side of the coil circuit.