Hey,
2003 Lancer ES, roughly 120,000 miles.

Background:
- Freak tire blowout and ripped out everything from under front pass side. Insurance replaced all wiring, tubes, etc. etc.

Problem:
- Car shudders (sometimes more violently) when in Drive or Reverse.
- A/C is on (rare if at all with A/C off).

When does the problem happen?:
- When car is at idle or or when starting from a stop for a few moments.
- Misfires very infrequent (not violent) when in N or Park.

Any codes?:
- Cyl 2 misfire.

Tried anything yet?:
- Replaced plugs. Code went away. 100 miles problem came back.


Any help is greatly appreciated. Thank you.