S14 rb20 wiring always on...

Discuss the RB20, RB25 and RB26 series engines.
Justin8763
Posts: 13
Joined: Tue Oct 05, 2004 2:38 pm
Car: 240sx s14

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Hey guys I got most of my wiring done, and everything seems to be okay, but when I connect the + terminal to the battery, I can hear the fuel pump wind up and the 'beep beep' noise as if my key is in the ignition. But when I put my key in the ignition and turn, nothing happens. I have no idea which wire(s) could be wrong?

-Ji
Modified by Justin8763 at 2:38 PM 10/17/2004


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lyon23
Posts: 379
Joined: Wed Apr 14, 2004 4:16 pm
Car: 95 240sx
Location: Florida

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sounds like your wired the ignition 2 wire to be hot when you plug in the battery. I hook up my alarm an I know the ignition 2 wire right after the ignition switch is white. But I dont know if this cable goes to the F3 plug on the ka. then again you could have wired the fuel pump to the battery and your sensor that knows when your key is in is stuck... when you hook up the battery do all the lights in the dash light up as well?

Justin8763
Posts: 13
Joined: Tue Oct 05, 2004 2:38 pm
Car: 240sx s14

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Yep, when I hook up the battery all the lights turn on so i know its not just the fuel pump, and you say the ignition 2 wire is white on the Rb harness?

Justin8763
Posts: 13
Joined: Tue Oct 05, 2004 2:38 pm
Car: 240sx s14

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Okay i seem to have figured out the problem with everything stayin on, there was a splice between the relays on the ignition wire (white/purp). seems as if someone has been messing with the wiring before me... but now its not sending a start signal and i cant figure it out

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JonPowell
Posts: 1522
Joined: Tue Feb 18, 2003 2:06 pm
Car: Cars, Music, My family
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start signal to starter or to ECU?

Justin8763
Posts: 13
Joined: Tue Oct 05, 2004 2:38 pm
Car: 240sx s14

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To the starter, im pretty sure its sending to the ECU cause i can hear the starter relay click when my key is in the start position

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JonPowell
Posts: 1522
Joined: Tue Feb 18, 2003 2:06 pm
Car: Cars, Music, My family
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Then you just need to check the wiring between that relay and the starter, that is where your break is.

Justin8763
Posts: 13
Joined: Tue Oct 05, 2004 2:38 pm
Car: 240sx s14

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are both the green relays supposed to click at the ON position? because both my green relays clikc when my key is at the ON position, and two other relays on the drivers side ( near the fuses) click when at the START position


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