What is your question?
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What is your question?
Sputters missing
What makes this problem better or worse?
Let off gas
How long has your 2002 GMC Sonoma had this problem?
Few months
Hello, too many possible reasons here - engine performance concerns could be base engine related, ignition spark related, fuel delivery related, air intake related, exhaust flow related -- or any combination of those. Testing is the only thing that will lead you to find the cause of the problem.