- 412
- 432
I haven't seen a post on this: If you have random misfire problems, carefully check the engine wiring harness in the area of the lower right-hand front corner of the passenger side valve cover. On my 2011, there is a gray plastic fastener which attaches the harness to a metal tab on the bracket that holds the ECU, and then the next fastener is a xmas tree type push pin which goes into a cavity in the timing chain cover. There's no heat tape or other protection for the harness in this area and taken together, these two fasteners pull the harness up tight against the corner of the metal timing chain cover, sort of underneath the valve cover. On my car, about an inch of the black plastic sheath on the harness was completely worn away and three of the wires inside were worn through down to the metal wires.
Hope this might be helpful to someone.
Hope this might be helpful to someone.
Last edited: