90 n/a wont start?

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
darkred92
Posts: 11
Joined: Sun Nov 27, 2011 4:33 pm
Car: 1990 Nissan 300zx

Post

    ok so.. i had a injector go bad and i watched a tutorial online....how to take the intake manifold off...lol i did it and changed the injector now my car wont start it turns over has gas through the lines checked the coil packs they are fine and the plug are fine but i cant get a damn spark from my spark plugs..they aren't even old they are two months old but because of this one injector was bad it did flood one clynder but i pullled the coil packs and spark plugs and turned it on to get the fuel out has anyone taken the intake manifold off and it not start? I mean i checked everything and there is no way all 6 spark plugs went bad could it? Im seriously in need of some help this car is my dailey driver...so if you are serious call me i need your help I NEED IT BADLY CALL ME ANYTIME!!!!! 5405830264 is my number my name is jared hurt


    User avatar
    JaredM
    Posts: 253
    Joined: Mon Nov 29, 2010 10:46 am
    Car: 1990 z32-300zx
    Location: Georgia

    Post

    Did you pull the codes from the computer?

    Try the CAS connector and make sure its on there tight? Mine was slightly loose and my car wouldnt fire the first time I did the manifold pull.

    User avatar
    es.biggs
    Posts: 2120
    Joined: Sat Feb 20, 2010 10:32 am
    Car: 1990 300ZX 5sp NA
    Location: Charlotte, NC

    Post

    Check grounds?

    darkred92
    Posts: 11
    Joined: Sun Nov 27, 2011 4:33 pm
    Car: 1990 Nissan 300zx

    Post

    No i didnt pull codes? How do you do that and how do you check grounds? And where is the CAS connector?

    User avatar
    JaredM
    Posts: 253
    Joined: Mon Nov 29, 2010 10:46 am
    Car: 1990 z32-300zx
    Location: Georgia

    Post

    There is a ground wire behind the manifold on the drivers side that many people forget, make sure its in place and secured.
    (the one with the copper ring at the top is what it should look like)
    http://www.z32photoguide.com/images/efi_hrns_95tt.jpg


    CAS: http://www.z32photoguide.com/images/3sensorloc.jpg

    codes: http://www.ttzd.com/tech/diagnostic/diagnostic.html

    User avatar
    left shin
    Posts: 41
    Joined: Wed Oct 26, 2011 5:36 pm
    Car: 1990 300zx NA

    Post

    Last time I tried to start my car without the drivers side ground attached, I fried my ptu. The car wouldn't start. I believe I got code 21.


    Make sure that ground is secure. And I find it easier to stick a paper clip in the 2 bottom right holes of the datascan connector than to dig up the ECU for codes.

    darkred92
    Posts: 11
    Joined: Sun Nov 27, 2011 4:33 pm
    Car: 1990 Nissan 300zx

    Post

    Ok so I checked the cas its fine and the ground is good also I will pull the codes on Mon my day off from work cause I'm working a s*** ton of hours so I can't mess with it

    darkred92
    Posts: 11
    Joined: Sun Nov 27, 2011 4:33 pm
    Car: 1990 Nissan 300zx

    Post

    ok so i got nothing no codes...my check engine light isnt on :( also i was told that the ignition module could be it??!!! any idea?

    User avatar
    JaredM
    Posts: 253
    Joined: Mon Nov 29, 2010 10:46 am
    Car: 1990 z32-300zx
    Location: Georgia

    Post

    you should at least get a code 55 (all clear code)

    darkred92
    Posts: 11
    Joined: Sun Nov 27, 2011 4:33 pm
    Car: 1990 Nissan 300zx

    Post

    ok i looked up how to do it and did it this morning i got a code 55 :(..it took me a while to get it but i understood what it had it did 5 slow blinks and then 5 fast blinks so i got a 55 :( and it still wont run could it be ignition module?

    darkred92
    Posts: 11
    Joined: Sun Nov 27, 2011 4:33 pm
    Car: 1990 Nissan 300zx

    Post

    also if so where is this located?


    Return to “300ZX (Z32) Technical”