BobcatDude

I have a 2007 F 150 with a 4.6 V8

Code is P0356 Coil F

Replaced plug and coil still will not fire!!!

What is next? please help want to go fishing Sunday for fathers day GRRRR

BobcatDude

and sorry OP I meant to type CODE P0356

sorry fat fingers

alsatropine

iTrader: (2)

Check the connection at the neck of the cop and also check the wires going to the plug. Ive had wires get nicked and short out.

BobcatDude

can i check for resistace with ohm meter?

BobcatDude

replace whole wiring harness? reflash ecm? hello anybody?

alsatropine

iTrader: (2)

Did you disconnect the battery for thirty min. Plug it back up. That will clear the code. Fire it up and see if it goes away. The pcm will have to relearn itself. If this doesn'T work then ill check back in 45 MIN. Im on a five hour drive and just got a chance to get on here.

alsatropine

iTrader: (2)

Ill even give you a call and try to walk u through it if that don't work.

BobcatDude

Going to do this right now and will update Thanks!!

BobcatDude

Dissconnected for 45 min no change

BobcatDude

Swapped plug and COP from running cyclinder, same thing
same code

did wiggle test to see if I could "excite" or get #6 to fire momentarily to rule out broken wire

AHHHHHH!