1999 Mercury Villager Cylinder 2 Misfire
If no change, swap injectors for misfire movement.
Bad gas would give multiple misfires,not just one cylinder. Very rare that bad gas is a problem.
Suggested Repair
Swap the cylinder 2 spark plug wire with another cylinder and the cylinder 2 plug with a different cylinder, confirm the wire is seated tightly at the distributor cap, reset the ECM, and recheck codes to see if the misfire moves. If it does not, swap injectors to see whether the misfire follows. Bad gas is unlikely because it would usually cause multiple misfires rather than one cylinder.
Conversation Summary
A 1999 Mercury Villager began sputtering and cutting out in the rain. After the distributor cap, rotor, and spark plug wires were replaced, the check engine light came on with a cylinder 2 code, rough idle below 1000 rpm, and jerking, while highway driving was mostly okay with some hesitation. Experts recommend swapping the cylinder 2 wire and plug with other cylinders, verifying the cap connection, resetting the ECM, and reading codes again. If the misfire does not move, swap injectors next. They note bad gas is an unlikely cause of a single-cylinder misfire.
