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Thread: Ashamed...

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    Registered User DstrbdSuperman's Avatar
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    Default Ashamed...

    So awhile back I tried to jump start my 1982 280zx turbo. Foolishly I swapped the posts on the battery popping a fusible link which I replaced. I have also replace spark plugs, spark plug wires, distributor cap, rotor, and ignition coil. But I am still left with no spark. I feel like a huge doofus because if I had swapped the posts the car would be fine. Also I did get a new battery but it has lost charge because it has been sitting but I can jump start it without a problem using the correct posts this time to try and start the car but I am still left with no spark. I do know that a possible problem is the ECU. is there a way to test that and anything else going forward? Because all other possible solutions going forward I know can get costly quick. So I am trying to avoid buying unnecessary parts. Any help will be greatly appreciated.

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    No more body roll! SteveJ's Avatar
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    Did you check all of your fusible links with a meter?
    73 240Z
    74 260Z

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    Registered User siteunseen's Avatar
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    My 280z has a fuse in one of the wires coming off the battery, could be that? here's some tings to look at...http://atlanticz.ca/zclub/techtips/e...ons/index.html
    It's called an EFI power connector in these pictures.
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    No more body roll! SteveJ's Avatar
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    The OP has a 280ZX. The fusible links are grouped together without a stray fusible link like the 280Z.
    73 240Z
    74 260Z

    Blue's collection of tech tips - A great place to look for answers
    XenonS30 -The cheap source for FSMs
    Georgia Z Club
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    Registered User siteunseen's Avatar
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    Well now I'm ashamed!
    1972 240Z #918 New Sight Orange
    1977 280Z #305 Light Blue Metallic
    1972 240Z #110 Persimmons Red

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    Registered User DstrbdSuperman's Avatar
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    Sorry for the lengthly non response. I had a problem with my computer and couldn't log on and respond. I am going to try and get to testing the links this weekend. As a non mechanical/electrical person what do I need to look for when using the voltage meter? I have one I just don't know how to use it completely. And just incase what do I need to check next?
    Last edited by DstrbdSuperman; 11-14-2013 at 05:56 AM.

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    Registered User sjb15316's Avatar
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    Quote Originally Posted by DstrbdSuperman View Post
    Sorry for the lengthly non response. I had a problem with my computer and couldn't log on and respond. I am going to try and get to testing the links this weekend. As a non mechanical/electrical person what do I need to look for when using the voltage meter? I have one I just don't know how to use it completely. And just incase what do I need to check next?

    If you have a volt/ohm meter, simply pull the fusible links from the box located on the passenger wheel well. BE SURE TO DISCONNECT BATTERY FIRST! Put your meter on "ohms" and test from end to end. If you have continuity replace then go to next one. That the easiest way. Be sure to change meter to DC voltage if you decide to test it "hot". Oh, be careful to pull "low" on the wire...you don't want it to "pull out" of the connector. It's not a big deal to replace, but it's just something you have to bother with...

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    Registered User ajmcforester's Avatar
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    Take your time testing and think of electricity making loops, the ground on the car is just the path back to the car, and take your time and you can find any problems with electrical. THis is simple advice.

    Are you getting power to cab lights and ignition?

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    Registered User DstrbdSuperman's Avatar
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    The lights on the inside do come on(with proper jumpstarting). The there is power getting to the ignition coil. but no spark is leaving the coil. A separate and unrelated issue is that the fuel pump needs to be replaced due to the fact that electricity connection is broke. I am working I tracking that down as well as trying to solve the no spark issue. I will be checking the links in a little bit and will post the out come in a few hours. Thanks for the help.
    '82 280ZX Turbo

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    Registered User ajmcforester's Avatar
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    Two things if power is going into the coil and not out check the baluster, you may have blown the balister and/or the coil. I know the early 300ZX had a fusible link to the fuel pump I'd check for that first for the fuel problem. At the nearest connector to fuel pump with the ignition on see if you are getting power.

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    Registered User DstrbdSuperman's Avatar
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    ok so all of the fusible links were fine. but here is some thing weird. but it is better show in the pictures below.
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    '82 280ZX Turbo

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    Registered User DstrbdSuperman's Avatar
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    The connection for the power to the fuel pump is broken at the fuel pump. So I have the figured out for the moment. the above pictures show the fusible link cover with the diagram of how the links should be placed. the second photo shows the link in place. The third photo shows the middle link that is suppose to three connections but it missing one. and when I took the link out the connector didn't have a third prong. So is it supposed to be that way? And what is the next step? Also what is a baluster? Where is located? And how do I check to see if it is bad?
    Last edited by DstrbdSuperman; 11-16-2013 at 04:29 PM.
    '82 280ZX Turbo

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    "when I took the link out the connector didn't have a third prong. So is it supposed to be that way?" Yes my 84 200SX was wired with the 3rd wire because mine had factory fog-lamps.
    "And what is the next step?" Fix the know bad connection you found at the fuel pump.

    Also what is a baluster? IT is a part connected to the coil it is made of ceramic with a coiled wire inside, if the wire is broke it's bad. Some the ceramic and wire are exposed others are in a cad color box. Exact location in the engine bay on 280ZX I can't remember.

    FYI crossing power like you did can create surges and ruin coils so if you have a spare like I always have around I'd recommend attaching that for now.

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    Registered User DstrbdSuperman's Avatar
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    Would the broken fuel pump cause the ECU not to allow the ignition coil to send a spark? Where is a good place to get a new fuel pump? Nissan doesn't have any more and I hesitate to get one from a place like AutoZone, Advance Auto, or Pepboys. Blackdragonautomotive.com only has them for non turbo models. Also is there such a thing as a adjustable fuel pump incase I upgrade the car later on?
    '82 280ZX Turbo

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    Registered User ajmcforester's Avatar
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    THe fuel pump not working should not affect the ECU. For a new pump Ebay could be a choice, or go online type in the manufacture of the pump and see what you get. I can't remember who made them originally for a 280ZX.

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    Registered User DstrbdSuperman's Avatar
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    Ok Fuel Pump ordered. I got it from Discount Body Parts . We'll see how goes. I will post on here once I get it installed. Is there any thing any else I can check in the mean time? Also is there a way to check the ECU to make sure that it is fine?
    '82 280ZX Turbo

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    Registered User ajmcforester's Avatar
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    Here are some things to watch. While the pump is not in you might as test the parts in the ingition system and start making repairs. Let us know how it goes

    Ignition Coil - How to Test - YouTube

    Ballast Resistor - How to Test - YouTube

    4201 Ballast Resistor Ign Circuit - YouTube

  18. #18
    Registered User DstrbdSuperman's Avatar
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    I will check the ignition coil this weekend. I am 99.9% sure that there isn't a ballast. There is a Transistor ignition unit which is #22020. Here is a picture of what I am working with. There is a smaller picture of the coil and the transistor unit off to the right. http://www.nissanpartszone.com/diagr...tem-220001.png
    Last edited by DstrbdSuperman; 11-20-2013 at 06:50 PM.
    '82 280ZX Turbo

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