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Thread: ignition coil wiring

  1. #1

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    ignition coil wiring

    Ok. I've had this 86 2.0 for a week and am trying to figure out what the guy who had it before me did. I'm not getting any spark at all. I bought a blaster coil for it and need to make sure how to hook it up. My chiltons doesn't have a very good picture of how the wires go. there are 2 black/whites, a red/white, a white(i assume is the tach), and the 2 wires coming from the distributor. I picked up a used dist from the junkyard off of a slightly newer model and I'm hoping it will fit, if not I will try and swap the electronics from it to the old dist.

    can I eliminate the resistor? could I use a resistor wire from the coil to the cap to eliminate the ballast resistor? I'm trying to simplify things in the engine bay

  2. #2



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    I think there is a Haynes manual in the manual section that will cover your truck. Look in the over 216 manuals post.
    You should start with a stock setup and get it running first before trying to swap out with after market parts. You will need the ballast resistor in the system. There is also some older posts that people have pictures of the stock set up. Use the search at the top of the page, and be sure to look in the archive for more info and posts.
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  3. #3

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    When I had a blaster coil I had to take the resistor out of the mix for the truck to run worth a dang.... lol ive seen it both ways tho.

  4. #4


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    Yeah a MSD blaster is an internal ballast so you can remove the external one.

  5. #5

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    ok, the manual on here doesn't give a good pic of the coil. it shows a couple wires, but there are 2 black/white with rings, a black/red, a white(tach), then the blue and black wires coming from the distributor. and then theres the resistor..... I've sifted through a bunch of the forums looking for a good pic to use. I've tried googling 86 mighty max coil wiring and came up empty...

  6. #6



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    I will go to my 86 2.0 and take good pics and draw out the hookup for you ... it won't be until Wensday at the earliest.
    Pennyman1
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    Living the D-50 lifestyle since 1980

  7. #7

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    I'm in for this too, just bought a d50, and the previous owner had some weird coil that burnt out, with a weird resistor, so now im trying to figure out what goes where exactly. it seems he had some stuff on the wrong polarity, BUT, it did run. None of the manuals have a full diagram of the coil, and most dont even make mention of the resistor. its pretty sad that the FSM for an 84 montero only makes mention of the iginition coil's resistance, and never talks about it again. A picture is definitely worth a thousand words in this case.

  8. #8

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    I finally got it running. It turns out the distributor it had in it was garbage for whatever reason. I found a distributor in the "distributor room" at the local junkyard that looked like the gear was in the right place and the flange was also positioned correctly. The pickup was completely different, as were the lobes on the shaft. different cap and rotor as well. I think the rotor they sold me ended up being from an older nissan. anyways my buddy came over with his tester(cont/voltage) and we figured out the black wire needed to go to the + coil and the blue was the trigger wire and needed to go to the - side.. no resistor, stock metal can type coil. fired right up. now I need to tune the brand new weber 32/34 to my motor. so, to recap..... black goes to coil+, blue goes to coil-. tach(white wire with the ring terminal on it) to coil neg(i think), the switched wire(the black/white with the little boot on it) to coil+. I ripped out the old carb and all the vacuum lines and various sensors. I'm going to pull the computer and its related wires. My buddy is going to weld up the cracks in the exhaust manifold tomorrow.

    When i pulled the manifold... really weird manifold... I guess it is the pre-cat, but big chunks of the catalytic matrix fell out in my hands, some melted, but damn... its freeflow now. is there any reason to save this stuff? does it have the platinum catalyst? is that a second cat below it on the exhaust pipe? should I check that one too? I mean if the pre-cat fell apart surely some of it went into the other cat below it.. if that IS indeed a second cat...

  9. #9



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    it does have a cat below the first one - the cat in the manifold is very valuable to a recycler - it has more precious metals in it than the new ones.
    Pennyman1
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  10. #10

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    Really? I have a cat manifold from the 2.6. I also have a non cat manifold.

  11. #11



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    in 1980, the 49 states d-50s had 1 cat, calif trucks had 2. I have heard rumors that the 79 trucks had no cats, but I have never seen one that way.
    Pennyman1
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  12. #12

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    Dude before you do all that, check the battery. i short circuited something a while ago, went thru everything and it turned out it was the battery, even tho all elecs, radio, starter kicked, had everything but no spark.
    turns out it wasn't oscillating properly to build the charge to spark. change the battery with one you know works.
    If no luv, post again and il upload the wiring patch sheet and take flics of mine. Ive gone thru this, spent money i didnt need to, it sucked horse balls.
    Big smelly balls.

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