changed motor in my 90 cherokee with a 96 4.0. but I put the intake exhaust man on from the motor that came out. I also put all of the old sensors in. now my problem is that this pos ran till the old motor locked up and now that i put the other motor in now i have no spark the cps is good i checked it the coil is good icm is good. the silnoid on the fenderwell is the ing term supost to have juce when the key is on the on pos or only when i crank the motor?

 

Check all your wires behind the alternator, all the engine grounds and connections are plugged around there, just make sure everything is where it should be and start checking from the battery, distributor, plug wires.

When I swapped my motor out I had to change out everything that connected to the wire harness and then I also had to swap the distributor and messed up the timing, had to set that one manually and it was a pain in the but when you cant move the distributor.