1997 Monte Carlo had engine from 1997 Olds Cutlass installed. Engine
runs flat, does not respond when shifting from first to second or second
to third gear. Problem occurs about 40% of the time, if you lift off the
gas and re-accelerate it clears itself. Mechanic said it was due to low
fuel pressure and replaced the fuel pump assembly,filters and fuel rail
and injectors. Does the EEEPROM need to be re-programmed to fix this
problem. Any advice would be appreciated.