Need help figuring out an issue with my s650. Got LT Headers installed on it about 2 months ago. The day after install I get a cel telling me I had an issue with my emissions which is common after header install. Fast forward and I recently got a CEL for a cylinder 6 engine misfire. Took it to ford and they ran diagnostics and injectors plugs and coils were good. At least that’s what they told and they told me the car needs a tune to account for the headers. I got with Lund and they told me a tune won’t fix the issue and that it’s mechanical. Any ideas.?
LT headers/ CEL misfire
- Thread starter Starxk
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- 5.0 misfire misfire mustang
So the P0430 code is from your headers.
The other two codes are for misfire and one is for cylinder 6.
I would begin by swapping the coil to another position and see if the misfire code follows the coil.
The other two codes are for misfire and one is for cylinder 6.
I would begin by swapping the coil to another position and see if the misfire code follows the coil.
If the same cylinder continues to misfire then the injector will be next.
Components can test good and still fail intermittently. The same goes for the wiring and connections leading to those components.
Components can test good and still fail intermittently. The same goes for the wiring and connections leading to those components.
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