Question about 1991 Jeep Wrangler

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I am working on a jeep wrangler, 1991, it won't start, it has spark, fuel, injector pulse, compression. I installed a new distributor, wires, plugs, crank and cam sensors, what else could it be ?

Posted by specvnpe on

  • Marvin
    Marvin May 11, 2010

    then the spark must be at the wrong time or it would run, of that is unless u are trying to start it with the air cleaner blocked off.

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Anonymous

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How is your starter?

Posted on May 14, 2009

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My 1991 jeep wrangler will not start. Engine turns over fine. The engine is getting fuel and has fire to the spark plugs. I have already changed the distributor (cap and pop up coil), plugs, plug wires,...


Check the timing to ensure it is correct.
Check each cylinder for the proper compression.
Try starting the jeep with some starting fluid. If it starts with the starting fluid, you may have a few bad injectors, or faulty injector wiring harness.

I’m happy to help further over the phone at https://www.6ya.com/expert/jeremy_69f3cc28d95bf514

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Good hot blue spark to all plugs.
Good gasoline and proper fuel pressure. 13-13.5 lbs on your TBI
If you have all 3 then move on to injector pulse to both injectors.

Keep me posted and recheck your spark plug wire to make sure they are not crossed. firing order 1-2-3-4-5-6 cylinder # passenger side 1-3-5 front to back. cylinder # drivers side 2-4-6 front to back
distributor #1 is located at the 7 o"clock and rotates clock wise so next distributor post on the right working clock wise is #2. Good luck and hope this helps.

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No injector pulse, no current to the injector


Check the pickup in the distributor as this is the cam sensor. The injectors run of the pulses created while the rotor is turning around. It should be a plastic disk located under the rotor button.

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