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Q:

check engine light comes on on 2006 Dodge Grand Caravan

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
just tuned it up/ check engine light comes on. Has come on intermittently - misfire on #6 has showed up; and now, did
total tune-up and check engine light is still on. Stayed off for about a half hour; came on and stays on.
(2) Answers
Try swapping the coil to cyl #5, the plug to cyl. 4 etc. When the code switches cylinders you will know what the problem is based on what part was moved to that cylinder. Don't move more than 1 part to the same cylinder.