i have a 1989 jeep wagoneer that i just replaced the motor with one out of a 1989 jeep cherokee new cps new icm new coil and cap rotor plug wires and still no spark i dont understand why ive checked every thing that everybodys posted on here and still nothing could it be the computer i really need help cause its my olny job

 

Are getting fuel pressure? I know you said you don't have spark, so that question sounds strange - but it is related.

If the CPS is not sending the right signal, you lose BOTH spark and fuel pressure.

And check at the shut down relay to see if it's closed or not.

Were the flywheel/flex plates identical? Which one did you use?
Even if the plate is slightly in a different position, the CPS won't make the signal.

Not sure if the Cherokee and Wagoneer computers are the same - check part numbers to see if they are the same.

LET US KNOW ON THIS THREAD WHAT YOU FIND!!!!!!!!!!

 

Could be cps easily not working known to happen slot

 

i have great fuel pressure and it doesnt sound that strange and i used the flexplate off of my waggy just for the cps and i dont know the if the computers are the same i bought just the motor off cl the motor has great compression awsome fuel pressure just no dang spark and i cant figure it out i just really want my xj back its been too long since i drove her i havent drove her since september of last year