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Q: A Service Engine Soon Light Just Came On - This isn't something that usually happens on 1998 Infiniti Q45

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
Is it possible that the Gas Cap wasn't put on correctly or I purchased some bad gas...this happened with my 98 Honda Accord and the service/check engine soon would go away eventually.
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You won't know the cause until you get a computer diagnostic.
Yes, it could be simple as a non-sealing gas cap, but it could be a failed sensor, a very reach fuel mixture - which could cause further expensive damage.
When the SES light on - get a computer diagnostic and repair your car accordingly.

Zee
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