Alright so after putting new grommets,injector caps,and new oil injector lines in my 87 FC (non turbo) i thought the car was going to start right up....guessed wrong.The car was first hesitating then we found out the CAS jumped off timing so i put a new CAS then one of my friend is inside keeps F*&@%ng with the light switch on and off and when i go to work on the car .....another problem.Once it cranks up it blows my 15A engine fuse.My gauges dont work and everytime i replace the fuse it blows again.So i stopped and im getting another engine wiring harness cuz mine has gotten a little stiff and is bound to crack and snap.If anyone knows what else it can be please post it ASAP. Got a 1987 FC manual with no mods other than a straight pipe and block off plates to 5th &6th ports and EGR.New NGK plugs and Wires. Help please its my only car and need it for a father son project when my dad gets out.

 

Only thing i can think of is to See how Many AMPS are going to the fuse then track it down...