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Q: low idle,engine surge@cruze speed, engine dies@red lite or stop sign on 1993 GMC Sonoma

going down road @55,60 mph starts missing will not throttle unless u mash to floor takes out good when back to cruze speed no power again. will run great @ full throttle
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I'd look for a problem with the EGR system, the airflow sensor (MAF), and the intake ducting for air leaks. There isn't much info in your question and I don't have much specific advice for you, I recommend you find a GM specialist to help you.
If you want to find a specialist, here's a directory link for you:
https://repairpal.com/gmc-repair-in-fairview-tennessee
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