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94 YJ hesitation no start

Discussion in 'Wrangler YJ (1986-1995)' started by YJ Noob, Dec 30, 2016.

  1. Dec 30, 2016 at 12:16 PM
    #1
    YJ Noob

    YJ Noob [OP] Member

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    1994 Wrangler Sahara L6
    Hello Everyone,
    I have picked my first jeep and am bringing it back from the dead. I picked it up from an older woman who was taken for a financial ride by a shady part replacer....after the story she told me I refuse to call the guy a mechanic.

    1994 YJ, L6, automatic won't start. The motor turns all day but no bang. After inspecting the jeep I replaced the ignition coil, wires, cap, rotor looks brand new and plugs.

    Verified fuel with the valve on the rail and used starting fluid.

    I checked spark by plugging in a sparkplug to one of the cylinder wires and grounding it but no spark. I metered the voltage going into the ignition coil and got the 12V ground and 11.75 V strobe.

    After reading a few things I replaced the crankshaft position sensor. I am going to verify both fuse boxes for blown fuses. If anyone has any insight I would greatly appreciate it. If someone knows a jeep genius on Oahu I would also take that info as well

    Thanks
    Derek
     
    Last edited by a moderator: Jan 4, 2017
    JKBob 25 and chris4x4 like this.
  2. Dec 30, 2016 at 3:56 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    Subed for outcome
     
    JKBob 25 likes this.
  3. Jan 2, 2017 at 11:54 PM
    #3
    YJ Noob

    YJ Noob [OP] Member

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    1994 Wrangler Sahara L6
    Distributor was 180 out, discovered with a newly acquired "stuff a paper towel in the number 1 cylinder hole " trick. Still no sparks though. I used the key reset to get the OBD to give me codes and got 12, 22, 23, 24 and 55. I know 12 and 55 are normal. I am chasing a ground right now and will update when I get there
     
    JKBob 25 likes this.
  4. Jan 3, 2017 at 8:42 PM
    #4
    C2T

    C2T Well-Known Member

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    Richard
    Helena, Montana
    Vehicle:
    Jeep
    2.5" AEV Dual Sport lift, 35" Treadwright Guard Dogs, Black Rock Wheels, AEV Front & Rear Bumpers with Tire Carrier, Fuel Caddy 10 gal. Aux. fuel tank, Warn 9.5ti, 125' synthetic winch line, front axle skid, 20" LED light bar , Bilstein Shocks, steel steering skidplate,
    :fingerscrossed:
     
    JKBob 25 likes this.
  5. Jul 24, 2017 at 12:47 AM
    #5
    YJ Noob

    YJ Noob [OP] Member

    Joined:
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    Male
    Vehicle:
    1994 Wrangler Sahara L6
    Well everyone she is running now, ended up with the 12 battery , 22, 23, 24 codes . Then was given some help and told to check the grounds on the corespondent sensors. It turned out that all three related sensors we not grounded properly. I bit into the ground wire from the front coolant sensor and ran a fresh ground. She coughed then fired right up, took her for a stroll , now I just have to change the fluids out.
     
    aggrex, JKBob 25, OFFGRID and 2 others like this.
  6. Jul 24, 2017 at 6:23 AM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine Moderator

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    Good to hear! Thanks for the update
     
  7. Jul 25, 2017 at 7:14 PM
    #7
    JKBob 25

    JKBob 25 Well-Known Member

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    Bob
    Jersey Shore, NJ
    Vehicle:
    2016 JK Wrangler Sport
    2" Superlift kit. 315/ 70/17.
    Cool. Must be one of the longest, I got her running threads I've read. 7 months. :jeep:

    So after keeping us on the edge of our seats for 7 months. You gotta share some pics dude. We like pics. :jeepwave:
     
    chris4x4 likes this.
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