Fuel Delivery problems of the 1997 Chevrolet C1500

The pickup's idle would vary from full throttle to barely stay running while in park. Would also go into full throttle while driving, then attempt to die. Took to a mechanic, changed the full filter, still didn't correct the problem; he put it on the computer for analysis showed it was the throttle sensor, that was replaced and it still does it.

The feul pump went out, first time at 61013 miles, was relaced with 200 dollar deductable. Then went out again at75860 miles, but this time they said also the sending unit. That holds the pump went out. They showed me burnt wires on this part, so sence it wasnt only the pump ,cost me another 200 deducted instead of getting replaced at no charge. I've read others have had same problems as I, and feel that something needs to be done about this before it does cause a fire and fatalitys. Dt.