service engine soon light comes on and off periodically
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CF Beginner
Joined: May 2017
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service engine soon light comes on and off periodically
i have a 1988 s10 2.5L 5 speed and the service engine soon light comes on for 30 seconds then off for about 30 seconds. sometimes it will have a misfire for a second and run fine for a while. what would cause this?