Can’t figure it out

[Tocostew]

Ok so I have a 2011 6.2l. I have my check engine light come on, pulled the code and it was a misfire on cylinder two. So things I have done are replacing all spark plugs with the NGK 6509 replaced all wires replaced the coils had a compression check done changed out injector Changed out camshaft position sensor and still no luck on clearing the cylinder two misfire. What am I missing?

 

[Nex]

Have you done fuse 27 and lead frame?

 

[Bsbuggs]

I was getting the same on cyl #3. It was very intermittent. I pulled the throttle body, and it was DIRTY. Cleaned the TB and the MAF and have not had a close in 2 weeks. Just a thought.

 

[FordTechOne]

It could be a coil or injector circuit issue, not necessarily a component failure. What DTCs are setting? CMP sensor will not cause a single cylinder misfire.

 

[Tocostew]

Have you done fuse 27 and lead frame?

I have done the fuse 27 but what is the lead frame ?

 

[Tocostew]

I was getting the same on cyl #3. It was very intermittent. I pulled the throttle body, and it was DIRTY. Cleaned the TB and the MAF and have not had a close in 2 weeks. Just a thought.

May have to try that. Thanks.

 

[Tocostew]

It could be a coil or injector circuit issue, not necessarily a component failure. What DTCs are setting? CMP sensor will not cause a single cylinder misfire.

P0302 and P0303 the suggestions were to change injector on the readout but that has already been done.

 

[FordTechOne]

P0302 and P0303 the suggestions were to change injector on the readout but that has already been done.

The parts shown on a generic scanner are just guesses/possible causes. It needs to be properly diagnosed to determine the actual root cause.

 

[CleverGirl_]

P0302 and P0303 the suggestions were to change injector on the readout but that has already been done.

Surprised it did not say "replace engine". Those things are a mess.

 

[Tocostew]

The parts shown on a generic scanner are just guesses/possible causes. It needs to be properly diagnosed to determine the actual root cause.

I have taken it to two different shops and neither one has found anything wrong.