Misfiring codes P2004, P2196, P0302, P0303, P0304, P0352, P0353 and P0356

BOOGANDBRAY2

MEMBER
2005 FORD EXPEDITION
5.4L
V8
2WD
AUTOMATIC
240,000 MILES

I have the vehicle listed above Eddie Bauer edition. It was previously put in a mechanic shop for misfiring. It has codes P2004, p2196, p0302, p0303, p0304, p0352, p0353, and p0356. I was told the problem was fixed when I got it back from the shop. I drove it about 20 minutes the day I got it back and it started doing the same thing before it went to the shop and the same codes popped back up. The mechanic put new spark plugs, all eight new coils, new o2 sensors, and new intake gasket on the vehicle. So, I'm stumped because it is throwing the same codes again. Any suggestions besides need a new motor? This is not the original motor that came with the vehicle, the motor has been replaced.

1 Reply

KEN L

MASTER CERTIFIED MECHANIC
48,363 POSTS

These are mostly misfire and coil circuit failures, which means one of two things, bad wiring harness or the PCM is not good. I would inspect the wiring harness and if no damage is found try replacing the PCM here are the instructions in the diagrams below. There is no programming, it is plug and play. Check out the diagrams (below). Let us know what happens and please upload pictures or videos of the problem.

Images (Click to make bigger)