How Do I Troubleshoot a Rough Idle in My Vauxhall Zafira Life?

I've noticed that my Vauxhall Zafira Life's engine has been idling roughly lately. It starts up fine, but once I'm at a stop, the revs drop and the car shakes a bit. I've changed the spark plugs and air filter, but the issue persists. Is there anything else I can check or do?

Hi Alexandra, a rough idle can be caused by a number of things. One possibility is a dirty or faulty mass airflow sensor. I'd recommend cleaning or replacing it. Another thing to check is the fuel injectors, as they can become clogged and affect engine performance.

Hi Alexandra, have you checked the engine's timing? If it's off, it could cause a rough idle. Also, make sure all the vacuum lines are connected properly and not damaged.

Hi Alexandra, I had a similar issue with my Vauxhall Zafira Life and it turned out to be a problem with the idle control valve. It was clogged with carbon deposits and needed to be replaced. You might want to look into that as well.