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Why do engine lights turn off?


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indy4192
User

Sep 23, 2009, 7:17 AM

Post #1 of 3 (1578 views)
Why do engine lights turn off? Sign In

If your engine light comes on shouldn't it stay on until the problem is fixed? Mine came on a week ago Sat and the code said my No. 1 cylinder is misfiring. I am taking it in this Sat to be looked at. I have done nothing to it since the light came on. Since it came on it has stayed on. Now this morning I get in, start the car and the light is no longer on. What is up?


Hammer Time
Ultimate Carjunky / Moderator
Hammer Time profile image

Sep 23, 2009, 7:47 AM

Post #2 of 3 (1574 views)
Re: Why do engine lights turn off? Sign In

That means nothing at all. Some lights stay on and some don't. They still retain the code in memory. Some will shut off if the problem doesn't repeat itself for a certain number of starts but that could just mean that the system where the problem occurred hasn't been active to set a code.



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indy4192
User

Sep 23, 2009, 7:53 AM

Post #3 of 3 (1570 views)
Re: Why do engine lights turn off? Sign In

Thanks, it's just wierd to me, I would figure that since mine deals with a misfire it would stay lit, but I guess not. Hope to figure out this weekend where that misfiring is occuring.






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