Zadouw Posted February 19 Share Posted February 19 First time post, I have scoured most of the site and tried anything related I could find. 1989 mj, 4.0, 4wd, automatic. I got the rig recently as a project swap from a random car lot. They were able to get it to run momentarily using ether to show that the engine its self was in decent shape. 👌. Now that I have it home it will fire up perfectly fine, but then immediately shut its self off like the key was turned off. Things I have done so far: Replaced distributor cap and rotor. Replaced all plugs and wires (verified gap on new plugs). Replaced/repaired any vacuum hoses I could find. Replaced crank position sensor. Replaced fuel filter. Verified power to the fuel pump. Verified 40 psi in fuel rail. Jumped the balast resistor. I even tried starting it with the pump wired straight to power constant (via the relay and at the resistor out). I am at a loss for what could be preventing it from staying running at this point. I can't seem to check any codes as the "maintenance" light does not illuminate (swapped in a known good bulb). Any advice, or ideas would be greatly appreciated. Thanks in advance! Quote Link to comment Share on other sites More sharing options...
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