Took the car to my mechanic yesterday. They ran the code, which said that there was an issue with power to one cylinder. They checked the spark plug and ran tests to the cylinder and everything checked out OK. They replaced the air filter and reset the check engine light. Drove it home, light stayed off. Started up this morning, it went on again. Could I just have a bad sensor or a bad computer?

 

What was the code? Your description is a bit cryptic.

 

He didn’t tell me the code

 

It is P0302