HELP! 93 ZJ crank no start -
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post #1 of 1 Old 05-06-2013, 12:02 PM Thread Starter
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Join Date: May 2013
Location: snellville
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HELP! 93 ZJ crank no start

93 zj, 4.0L, np242, AW4, 150k, cranks over just fine, and will not start. it sounds like it faintly fires once or twice during cranking but not even enough to stumble. i have good spark at all 6 plugs, i have good compression, 40 psi of fuel pressure, and the injectors ARE working well. have replaced distributor/cam sensor (all in one) , crank sensor, plugs, wires, cap, rotor, coil, have confirmed firing order, have confirmed timing is set, (dist points at 1 when #1 piston is at tdc on compression, but it WILL NOT START. was running poorly yesterday (no check engine light) and barely idling on its own, and went to cranbk this morning to no avail. have replaced all these parts since then. have run all the tests i can think of since then. please help me?! i have alot of experience with this thing but this is the first time its stumped me. all the rocker arms are moving like they should too. HEEEELLLPPP!!!

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