Truck is shaking while in parked and idle, codes P0356, P0356, P0351

DEERGUY

MEMBER
2004 FORD F-150
5.4L
V8
4WD
AUTOMATIC
296,000 MILES

I replaced fuel filter, VCT solenoids, sparked plugs (8), I replaced all coils packs (8). Do I need to replace all fuel injectors? With truck running three pending codes are showing up and they only show while the truck is actually running.

P0356-ingition coil F Primary /secondary circuit malfunction

P0356-Bank 1 system to lean

P0351-Ignition coil A primary secondary circuit

2 Replies

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello,

In the diagrams down below I have included for you the factory diagnostic troubleshooting flowcharts for your vehicle for Direct Trouble Code(s)(DTC)(s) P0351 and P0356. In the pinpoint tests they will have you test for spark, and here is a link below explaining how to do this if you don't have a spark tester:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros

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Saturday, July 20th, 2019 AT 4:04 PM

SCGRANTURISMO

MECHANIC
4,897 POSTS

Hello,

In the diagrams down below I have included for you the factory diagnostic troubleshooting flowcharts for your vehicle for Direct Trouble Code(s)(DTC)(s) P0351 and P0356. In the pinpoint tests they will have you test for spark, and here is a link below explaining how to do this if you don't have a spark tester:

https://www.2carpros.com/articles/how-to-test-an-ignition-system

Please go through these guides and get back to us with what you are able to find out.

Thanks,
Alex
2CarPros

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