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Q: high idle usin alot of fuel on 1993 GMC Sonoma

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erg valve has been checked ,just had new clutch pressure plate and tune up done in jan 29th,was runnin fine till recently ,made two trips to sc everything was fine now high idle spittin sputterin doesnt seem to want to go ,been in shop for week cant find problem ?put on com 2x nothin keep sayin cant find problem?whats the deal?
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MY CRUISE CONTROL WAS STUCK...ENDed UP HAVING TO REPLACE THE FUEL PUMP...IT'S IN THE GAS TANK.
Did you try replacing the fuel pressure regulator? I practically redid my whole fuel system, minus the fuel pump. But the truck rides great (granted mine is a 1994). I replaced my EGR valve, fuel pressure regulator along with a laundry list of completely unrelated things. However I have heard that sometimes excessive carbon can build up. Try the fuel injector cleanor (Seafoam works best) as a quick fix and see, if not , it might be your fuel injector. Depending on your engine.
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