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Re: HELP...1986 C20 5.7....smog removed,,,Check engine light???
Quote:
Originally Posted by 72freak
It comes on only at higher speeds/longer drives (normally on the interstate)
It will go back out when you shut the truck off and it will stay off untill you are back on the interstate. It never comes on driving around town.
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another possibilty could be the O2 Sensor... just a thought...
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CaliDude76
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