Misfires can turn your smooth ride into a frustrating, costly guessing game if you don’t get to the real cause. While spark plugs often get blamed first, evidence shows ignition coils, fuel injectors, ...

Q. I'm having motor problems with my Chrysler PT Cruiser. A while ago, my check engine light kept coming on so I had a mechanic put it on a computer. It named the No. 2 spark plug as the problem. I ...

Why it matters: Misfires hurt performance, fuel economy, and can damage the catalytic converter if ignored, turning a small fix into a major repair. Finding the cause: Use OBD-II codes, misfire ...

I have a 2004 Volkswagen Lupo 1.4 16v with a full service history, just over 16,700 miles on the clock, always garaged, never screwed the car. My low emissions light came on, so I phoned the ...