GMC Sierra stalling problem

doc112doc112 Member Posts: 1
edited October 2014 in GMC
1996 Sierra SLT 5,7L Vortec engine, 116,000 miles. Starts fine and idles fine. Under acceleration load engine just 'dies.' New Throttle Body Sensor installed and problem is now WORSE. Last trip to garage for this problem yielded NO codes. Fuel pressure checked OK. ANY ideas as to next move?
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