calling all wiring pros please help

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sideslider240
Posts: 74
Joined: Sat Mar 29, 2008 5:56 am
Car: 91 240sx

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the car is an 89 240 w/ sr blacktop. i took the harness apart to condense and hopefully find my shorting problem. i did and now i am left with 2 wires that i dont remember where they go firts is a small blue/red coming from plug on rear of intake the other is blue yellow coming from ecu. yes i obviously forgot to mark these two i have searched and cant find a sr fsm any help would be appreciated. and secondly i know this is a super dumb question but are the pistons 1234 from firewall or from core support. or what order are they in. as you can guess i also forgot to label the injectors when i pulled the harness apart and all the wiring is the same length i know which plug goes to 1234 but i dont remeber the injector order od direction srry for the long post thanx p.s. i know i'm a newb


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sideslider240
Posts: 74
Joined: Sat Mar 29, 2008 5:56 am
Car: 91 240sx

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bump come on guys .....nothing?

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sideslider240
Posts: 74
Joined: Sat Mar 29, 2008 5:56 am
Car: 91 240sx

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come on guys all i need is a push in the right direction im not looking for someone to tell me the exacts i prefer to learn over just getting the answers pretty please!!??

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moso
Posts: 801
Joined: Sat Jul 04, 2009 5:14 pm
Car: 89 240sx ka24de 5spd
90 240sx ka24de RIP

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i hate linking to another site but here goeshttp://www.phase2motortrend.com/nifasemaf.htmlcheck out the s14 sr20det fsm. its a horrible copy but if you go to page 149 it shows what pins from the ecu go to witch injectors. hope this helps.

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sideslider240
Posts: 74
Joined: Sat Mar 29, 2008 5:56 am
Car: 91 240sx

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thanks mna just what i needed

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sideslider240
Posts: 74
Joined: Sat Mar 29, 2008 5:56 am
Car: 91 240sx

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k guys got the injector thing figured out now can anyone PLEASE tell me where the small blue\red wire goes and the small blue\yellow wire goes i would be forever grateful. living without my car isn't really living ya know

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moso
Posts: 801
Joined: Sat Jul 04, 2009 5:14 pm
Car: 89 240sx ka24de 5spd
90 240sx ka24de RIP

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All the wires going into or coming out of the motor should go to the ecu except those on the lower wire harness wich should be easy to differenciate. That being said you should be able to use the wire schematics in the fsm to find those wires. Alternatively you could photo those wires and post those as most of us know location and the look of parts than the individual wire colors that go to them.

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sideslider240
Posts: 74
Joined: Sat Mar 29, 2008 5:56 am
Car: 91 240sx

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on my way to band practice will post pics when i get back. the blue /yellow is exhaust temp the blue/red comes from a sensor but will post later


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