So I recently bought a 1990 Cherokee sport that hasn’t ran in ten years and I am making a project car out of it well I completely replaced the fuel system and the whole entire igtion system but the vehicle will still not start the motor cranks but nothing else and I’m not getting any power to the spark plugs or the injectors ( Which have all been replaced)

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The last two times I had that happen. It was a crank position sensor. But it could be a few other things. Like a bad coil, but hopefully not a bad pcm.I have never had a Cherokee sit that long.Since you have replaced your ignition system you have a good chance its not your ignition system, but with a high failure rate on new parts, who knows. Unless something isn’t hooked up correctly. When I had the problem the engine cranked and there was no spark,but I never checked the injectors.The crank position sensor sends a signal to your pcm which turns your coil on and off. There about $35. You could go to the xj modified section and ask how to test if your crank position sensor is out. I just got lucky my last two times, I didn’t have a deeper problem. Not sure how much you already know,but I will send pics of the part and location anyway. It’s a real pain to get to sometimes.