P0355 Ford -

Question

I just changed the spark plugs in ford f-150 2005. I was so happy I got all the plugs out with no breaks. now my #1 and #5 isn't firing. it says cop1 and cop5(trouble code p0355 and p0351. since then I have changed one ignition coil connector on #1 due to a cut in wire, then on #5 noticed some corrosion on the coil so I changed it. Still misfiring. :/ what should I do?

Answer 1

Hi there,

If replacing the coils and wires hasn't solved the issue, it could be an internal engine problem. Here is some info for you.

P0351 FORD - Ignition Coil 'A' Primary/Secondary Circuit

Read more: https://www.autocodes.com/p0351_ford.html