I need help asap on an 86 1/2 nissan hardbody

[gnutt13]

Here is the deal, I bought my truck already bagged and did not look to much into the wiring under the hood. One day I was driving down the road and hit a good bump the truck shut off and would not start it turns over but no spark and the fuel pump will not turn on, so I jumped the pump and got it to run but still will not start no spark. Then I looked at the wiring under the hood to discover that on the passenger side wiring on the fender had been chewed through so I fixed it . I then thought the computer was bad so I replaced it and nothing. Is there suppose to be a light on the computer if good but no light flashes. Please help

[Rev_D21]

Sounds like a nitemare.