Need Picture of Connections AIV/Fuel Injectors plz

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
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vape-one
Posts: 416
Joined: Wed Oct 29, 2008 6:01 pm
Car: 1990 300zx

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On my so called Plenum assembly I am coming up with a Injector wire without a place to put it..... I have some wires mixd up on the back side right/driver side near the AIV.. Idle screw... Any one out there can send me a picture of the AIV/FIAV assembled??? Need picture of top of engine..


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vape-one
Posts: 416
Joined: Wed Oct 29, 2008 6:01 pm
Car: 1990 300zx

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It's no big deal I will figure it out eventually but if anyone has any pictures of there engine wired up it would help me be faster ... Im ready to fire this Z up.

I need to know witch wires go where.. I got Injector an sensor wires mixed up.. I have a female plug with no where to put it...lol

This picture almost solves my problem.. Im still looking.. I probably got Injectors an Spark plug wires all mixed up lol.. I had a friend with me when we was taking apart an I taped up the wires that were close to one another but it just wasn't detailed enough ..


Modified by vape-one at 2:13 AM 2/17/2010

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Zwicked
Posts: 3133
Joined: Mon May 14, 2007 6:19 am
Car: 1990 300 ZX tt, 1990 240SX

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There should be 2 on the driver's side, one for the AAC and one lower down for the FICD both items are on the IACV unit. The other one more near the middle is the Air Regulator. All 3 of these have the connector with the spring clip like the injectors. This will cover the 2 spots you have circled (3 connectors).The 6 injector connectors are on a different part of the harness and once the harness is laid out over the engine properly it should be fairly obvious by wire lengths where they go. The only ones that might be a bit confusing is the front 2 on the passenger side as they are both long enough to be mixed up.In the front of the engine is the coolant temp sensor that has the same type connector. Those are about the only ones that are engine related short of the EGR and AIV connectors which are down by the battery/exhaust manifold.

Hope this helps. There's no real photo available as engines out of the car don't have the harness on, expect maybe if you could see one at an auto scrap yard where they usually chop the harness to pull the engine.


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vape-one
Posts: 416
Joined: Wed Oct 29, 2008 6:01 pm
Car: 1990 300zx

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Hey pal your great.. I missed the AAC.. It was hiding from me.. Now I have a Coolant leak I hope I don't have to take Plenum back off..

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Zwicked
Posts: 3133
Joined: Mon May 14, 2007 6:19 am
Car: 1990 300 ZX tt, 1990 240SX

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Did you leave the throttle body coolant circuit like it was from the factory? If you did and you have to pull the plenum, ditch that setup. Nice thought from the factory, but major fail. That is an item just waiting to shut people down at the worst possible time on any Z that hasn't had that removed.

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vape-one
Posts: 416
Joined: Wed Oct 29, 2008 6:01 pm
Car: 1990 300zx

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There is no leak.. These EGR recirculation tubes were almost fully clogged full of black crud when I took plenum off.So I guess when I unclogged them it started getting better vacuum an was making converters heat up an therefore made more smoke. Or it's because the converter is clogged because illustration #2 the converter was glowing an shooting sparks.. Any how my car has no power .. DO YA THINK THAT A CLOGGED CONVERTER IS MY PROBLEM..




Modified by vape-one at 10:47 PM 2/18/2010


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