Working on a 92 EFI F150

I believe it is an early 92 model because when the parts guy looked up the intake gasket kit for a 92 the egr gasket was incorrect but was correct for a 91 ( correct me if i am wrong)

Engine barely ran, with huge miss

Rats chewed cylinder number 3 and 7 injector wires

After rewiring injectors with new wire clips the motor still did not run except at full and half throttle

Pulled plugs #'s 1,4,5,8 were dry and slightly carboned up (normal burn) #'s 2,3,6,7 were clear clean fuely and (not burning)

Ran a compression test on all cylinders and got 135psi on all 8

Replaced distributor upper and lower cap and each cylinder is receiving ignition (broke it in the plenum removal process)

after removing all spark plugs I noticed large amounts of fuel coming out of the middle four cylinders ( # 2,3,6,7)when spinning it over with ignition on. ( large drops hitting the fender wells). So I unplugged the injectors and spun the motor over again with ignition on, and there was no fuel coming out.

So i concluded that the injectors weren't hung but the computer was telling those plugs to open for too long (ie full throttle.)

Tried disconnecting the battery and resetting the system, however the same result occurred

What do i do now?

Any help will be greatly appreciated. Ive already been paid too much for my time on this job and need to fix as soon as possible.

 

I'd say you still have some chewed wires to find.