What I have checked:
- swapped all spark plugs, BKR6EIX, gapped to 0.035"
- checked coil pack and wires, all OK.
- compression on all cylinders are 150-170
- intake leaks (with brake clean)
- Put seafoam into fuel tank and ran for first two fillups
- fuel filter and fuel injectors (voltmeter and visual check)
- disconnected the MAF sensor and started the car, only to realize it doesn't change the misfiring. Just ran rich.
- vacuum leaks/boost leaks (doesn't seem to have any)
On any deceleration in a gear, there is a slight squeak coming from the engine every time the car afterfires. When disconnecting the TPS sensor, there was no change in idle. However the TPS has voltage through its wires.
To note: the car had no misfiring issues prior to the accident, and through the accident the engine didn't sustain any damage.
If anyone else has any other recommendations on what else to try, I'd love to know. It's currently my daily and I have to drive down to Palo Alto in the coming month for work, which is a 9 hour drive in this car.
Many thanks
