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Ron Stygar Carl Buckland Dale Beuning Forums Help
From digest.v7.n260 Thu Sep 11 16:13:34 1997
>Has anyone been told that on a new 97 M3, that if you fill it with
>gas and you have the ignition on that it can screw up a sensor in the
>gas tank and cause a fault that will light the Check Engine light?
>My dealer says this is common with the new cars. Nothing seems wrong
>and I haven't gotten to the dealer yet.
My dealer told me that the car must be running when filling it with
gas to cause the check engine light to come on. This is mainly a
result of the vacuum leak caused by having the gas cap off. The same
thing will happen if you run the car with the dipstick not sealed (or
the oil cap, although the car barely runs with this off).
Dean
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