88 Chevy Silverado too much air in throttle body. will not gain power. dies...

[Brandi Capps]

...when put in gear. what could it be? No mechanical problems until Friday when it was in minor collision. Damage to right fender, front bumper, grill and hood. Starts, but dies when put in any gear. Replaced Engine Control Computer, Throttle Position Sensor, Ignition Coil, Control Module, and Spark Control Module, still same problem. Checked fuses, all ok. Checked ground, ok. 14 volts coming out of Alternator. wiring appears to be ok. please help.

 

[Big]

Try disconnecting battery for 15 mins, this will reset computer