I took my family to Christmas in the park about twenty miles from home where there was a lot of stop-and-go traffic.They absolutely loved it and the Barth did great.On the way home I noticed the Service Engine Soon light came on and the oil gauge on the speedo cluster panel was fluctuating from 20 to 60 in coordination with rpm's. Just went out after 30 minutes and started it and no light. Put your heads together for me Barth guru's.

Any reputable repair shop can plug into the computer and see what the issue is...assuming yours has a computer, which it probably does.

Generally, it's something simple, like an O2 sensor.