Question about 1994 Nissan Altima

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94 Altima Running Rough

Troubleshooting so far is, pulled spark plug wires 1 at time, and found that #4 has spark, but I get no ignition. I replaced spark plugs, distributor and rotor. No joy. Before I take it to Nissan and find out that the computer is bad, how can I troubleshoot the fuel injector to see if there is an electrical problem or the injector is bad?

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  • David C
    David C Dec 31, 2008

    I ended up having to use a volt meter as noone around had noid lights. I did get current running from the plug, so I knew it had to be the fuel injector. I successfully replaced it, and now the car runs great again.

    Thanks for the help.


  • nascar14 Jan 20, 2009

    my 1994 nissan altima started idling rough it idles fine in park but when you take it out of park it idles rough runs good going down the road

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  • Master
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MAKE SURE WIRES ARE GOOD, to check injector Get a noid light and take that injector plug and plug into noid light it should light up everytime injector would pulse.(IT SHOULD BE A STEADY PULSE) contact if you need more help

Posted on Dec 27, 2008

  • O Mclean Dec 31, 2008

    YOU ARE WELCOME and HAPPY NEW YEARS

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2003 Chevrolet Malibu 3.1L SFI OHV 6cyl
Spark Plug Wires - Removal & Installation

3.5L Engine
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To install:
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74d742b.jpg


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306b531.jpg


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f357cd3.jpg

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09e9db9.jpg

I really hope help you with this (remember rated this help) Good luck.

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