What is your question?
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What is your question?
Engine light on at idle stops after acceleration Then engine light after 4 or 5miles at highway speed. Turn off then start and no light good for another 4 or 5 miles. Any suggestions for a good starting point twards a solution?
What makes this problem better or worse?
Engine is warm
How long has your 1993 GMC C1500 had this problem?
2 weeks
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