Reference Details
- Common issue
- A 351C or 351-2V decal, missing decal, or reproduction decal used on a car whose VIN and records do not support Q-code identity.
- Confidence
- reported
- Correct value
- 351C-4V Q-code engine code decal K621SG
- Where to check
- Underhood engine code decal location; verify against the individual car and factory paperwork