I HAVE RECENTLY CHANGED MY 91 305 TBI ENGINE OUT FOR 86 350 TPI ENGINE.I REBUILT THE 350 BOTTOM UP AND PUT NEW SENSORS. I REMOVED THE WIRE HARNESS AND COMPUTER FROM THE 86. I PLACED EVERYTHING INTO MY 91. CHANGED THE FUEL PUMP AND AFTER ALL SAID AND DONE I TURNED THE KEY AND NO VROOM! WHAT COULD IT BE?

IT CANT BE A VAT BECAUSE I HAD THE KEY BYPASSED A FEW YEARS BACK. THE QUESTION IS WITH THE 86 WIRE HARNESS. 1. SHOULD THE HARNESS PLUG STRAIGHT UP AND WORK. 2. DO I NEED TO RE PIN IT. IF SO HOW DO YOU REMOVE THE PINOUTS IN IT. 3. I ALSO OPTED TO HAVE THE TBI HARNESS REWIRED SO THAT IT WOULD BE A TPI HARNESS. 3. PAINLESS WIRING LOOKS LIKE A PAIN. 4. THE LIGHT SIDE OF THE HARNESS SHOULD I USE THE 86 SIDE OR KEEP THE 91 AND WOULD THAT EFFECT THE OUT COME. PLEASE ANYBODY HELP! I AM GOING