Gents, let me go over what we've got here.
It's the 88GT in the sig.
We have narrowed it down to the sparkplugs not firing inside cylinders 1,2,6,& 8.
They will fire outside of the cylinder.
There is spark going to the plugs while running.
It will start and idle fine.
New plugs three times.
New wires.
New cap and rotor.
Fuel pressure good.
Noid light test good, so injectors are pulsing.
Ground is doubled and tested good.
New injectors.
Timing set stock
Compression test good in all cylinders.
Pulled codes 22 and 14 not running, no test yet on running..
Tested TFI nodule at auto Zone 4 times, good.
It will not drive much at all of the 4 cylinders, no smoke, no popping. It was an automatic but was swapped to a 5 speed, still has the stock AOD computer in it, pin #30 is taped off. Firing order is correct. This happened when we changed heads and piston rings and then put the motor back in. PLEASE help. thanks everyone!
Shawn
