I have a 1998 Buick. Recently, the Check Engine Light Soon light went on and
at the same time the car started riding real rough.

I undid the gas cap and put it back on. The car immediately returned to
normal (I must not have clicked the gas cap the last time I used it which
was the previous day). After about 15 more minutes of driving the Check
Engine light went off and all is well.

However, when I check the car's computer via CARMD it still gives a yellow
signal. This means that I have a potential problem OR that the computer's
error message has not been properly reset.

I assume it's the latter due to the aforementioned occurence.

So, is there anything I can do to reset things or will that just occur by
itself over time??

Mel