[rylanej]

Already posted about this but the consensus seemed to be spark plugs or coils which I have since replaced and the issues are still occurring.

A few days a ago I gave a small pull up a hill and then the car started to shake like crazy and went into limp mode. Still very shaky and stalls in reverse sometimes. I've replaced plugs, coils, and the charge pipe but still having all the issues. I've attached the codes it's running below. Thanks for the help. [IMG][/IMG]

[N54_e90]

Could be mofsets. Plugs wet or have black soot? Hows hpfp?

[rylanej]

Originally Posted by N54_e90

Could be mofsets. Plugs wet or have black soot? Hows hpfp?

No check engine just SES and no code so I don't think HPFP. A couple of the plugs had some sut on the threading but none on the bottom.

[Saif2018]

Originally Posted by rylanej

No check engine just SES and no code so I don't think HPFP. A couple of the plugs had some sut on the threading but none on the bottom.

It looks like mosfet failure but before you do that, move injectors from one cylinder (1-4) to 5 or 6 and see if misfire follows (you'll need to replace injector seals) , if it doesn't then you need to get your DME checked

[rylanej]

Originally Posted by Saif2018

It looks like mosfet failure but before you do that, move injectors from one cylinder (1-4) to 5 or 6 and see if misfire follows (you'll need to replace injector seals) , if it doesn't then you need to get your DME checked

Heard a hissing noise and noticed this. Could this be cause of all the issues?

[Saif2018]

Originally Posted by rylanej

Heard a hissing noise and noticed this. Could this be cause of all the issues?

Probably your 30FF code, but I don't see how it can cause a misfire. Good idea to replace it and all vacuum lines.

[rylanej]

Originally Posted by Saif2018

Probably your 30FF code, but I don't see how it can cause a misfire. Good idea to replace it and all vacuum lines.

Yeah it got rid of low boost code but still have the misfires as you said it would. I pulled out the spark plug for cylinder 2 because that's the only remaining code and it is definitely wet at the bottom. Does that mean I have the replace the 2nd injector?

[Saif2018]

Originally Posted by rylanej

Yeah it got rid of low boost code but still have the misfires as you said it would. I pulled out the spark plug for cylinder 2 because that's the only remaining code and it is definitely wet at the bottom. Does that mean I have the replace the 2nd injector?

If the plug is wet or smells of fuel, you've got a leaking injector. Running the car with leaking injector can cause you big problems further down the line.

Have you checked the remaining plugs?

[rylanej]

Originally Posted by Saif2018

If the plug is wet or smells of fuel, you've got a leaking injector. Running the car with leaking injector can cause you big problems further down the line.

Have you checked the remaining plugs?

Just 1 and 3. Both appeared normal and it's still only showing cylinder 2 misfire.

[Saif2018]

Originally Posted by rylanej

Just 1 and 3. Both appeared normal and it's still only showing cylinder 2 misfire.

May as well check all the plugs, have you checked for any Valve cover gasket leaks or cracks on the Valve cover itself? No oil should be leaking.

Replacing the leaking cylinder 2 injector should hopefully resolve the misfire problem. You should replace the seal and code the injector. The other 2 common causes of misfires are plugs and coils.