s13 wiring help please

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kylekinnamon1989
Posts: 116
Joined: Sat Jun 21, 2008 11:25 pm
Car: 90' Nissan 240sx SE/ SR20DET

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for dohc. there is a wiring harness that goes across the injector, then by the fan shroud then spits to the mafs. and then there is a brown with gray stripe, and black with gray stripe wires that go into a little connector then and come out both black! what do those black wires connect to? i had an incident where they ripped and now my brake light stays on, when i press the gas there is a ringing sound coming from under by the fuse box and the brake light dims when i press the gas, and when i turn the key off, they car stays started for about 2 more seconds. please help


rioredstang
Posts: 293
Joined: Sun Nov 30, 2008 3:47 pm
Car: 1993 240sx SCCA ITS
Location: Chattanooga, TN

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It sounds like the wires to the power steering switch. Look on the hi pressure hose and you should see the switch. The wires are probably ripped off the switch. The running after you shut the switch off is something back feeding across the ignition switch circuit. Usually a cooling fan incorrectly installed will do this.

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kylekinnamon1989
Posts: 116
Joined: Sat Jun 21, 2008 11:25 pm
Car: 90' Nissan 240sx SE/ SR20DET

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ok, ill check that power steering switch in the morning, as for the cooling fan.. i connected my ac fan to the fuel pump relay cuz i removed my fan clutch so i guess that makes sense. but whats the buzzing and why is the brake light on?

rioredstang
Posts: 293
Joined: Sun Nov 30, 2008 3:47 pm
Car: 1993 240sx SCCA ITS
Location: Chattanooga, TN

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I'm not sure as to the brake light being on. The light on the dash is shared with master cylinder low level switch and parking brake. These switches go to ground to operate them. I think you have a bad ground somewhere. My wire diagram doesn't show ground locations. You need to put your hand on the relay that is buzzing. When you locate it look it up on the fuse relay legend and then trace your power and grounds. Most always a bad ground when I have had a relay buzz.


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