Code P0351 Follow-up

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02-22-2011, 06:47 AM

#11

WhiteFoxGT

Resident Ford Troll

Join Date: Jul 2006

Location: Delaware

Posts: 6,717

Could just be a shorted COP. They go bad all the time, but usually throw a misfire code

02-22-2011, 07:00 AM

#12

cliffyk

TECH SAVANT

Join Date: Dec 2006

Location: Saint Augustine, FL

Posts: 10,938

Quote:

Originally Posted by boothay

Well to my surprise it wasnt the melted wire. Its actually the first coil plug on the passenger side. When I unplug all the rest of them the engine dies, when I unplug coil #1 the engine stays the same. Question Is why would one coil not fire if it was the ecu? Wouldn't a broken ecu not make any of the coils fire?

There, in the PCM, are separate drivers for each coil, they can fail individually.