Wiring harness causing my speedo not to work

Discuss the RB20, RB25 and RB26 series engines.
95_240
Posts: 560
Joined: Fri Jan 07, 2005 4:26 pm
Car: 1995 240sx

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With the previous harness I had my speedo worked on my car. I was just trying to get a harness that cleaned up my engine bay a little bit. Big mistake.

So now my speedo doesn't work and I'm getting power to one of the wires and the other wire has continuity with pin number 53 on the ecu. The f3 plug does not have a wire going to the number 24 slot for the speedo. I'm assuming this is the reason I'm not getting signal. Where do I get the signal for this wire? This is for a RB25 series 2 into a S14.

Thanks
Last edited by 95_240 on Wed Nov 09, 2011 3:16 pm, edited 1 time in total.


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TimTurboZ
Posts: 663
Joined: Mon Oct 06, 2008 8:59 pm
Car: 95 S14 w/RBXX... 65' Mustang GT
Location: Sacramento, CA

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Speedo goes to Lower harness goes to fusebox in engine bay, down by the headlights, over the rad, through the driver fender, and up behind the dash. That's a speed signal wire for the ecu is so the ECU knows your speed, unnecessary for the cluster.

:biggrin:

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TimTurboZ
Posts: 663
Joined: Mon Oct 06, 2008 8:59 pm
Car: 95 S14 w/RBXX... 65' Mustang GT
Location: Sacramento, CA

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Check your fuse in your kick panel or your harness wires? your car lowered? I lost my speedo in my coupe that way until I realized the problem

95_240
Posts: 560
Joined: Fri Jan 07, 2005 4:26 pm
Car: 1995 240sx

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Thanks for the help. I'll check continuity between the sensor and the cluster to see if that helps narrow down the problem. This harness is just making everything a little more difficult because the wiring is different colors than factory wiring.

95_240
Posts: 560
Joined: Fri Jan 07, 2005 4:26 pm
Car: 1995 240sx

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Guess what. The harness is to blame again. This is the fourth thing that has been miswired so far that I have had to troubleshoot myself.
Last edited by 95_240 on Wed Nov 09, 2011 3:17 pm, edited 2 times in total.

240z4u
Posts: 2071
Joined: Mon Feb 21, 2005 4:47 am
Car: '95 Nissan 240SX

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*deleted* don't want to throw them under the bus if they didn't build the harness.
Last edited by 240z4u on Thu Nov 10, 2011 10:36 am, edited 1 time in total.

95_240
Posts: 560
Joined: Fri Jan 07, 2005 4:26 pm
Car: 1995 240sx

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Nope. I'm sending it back and maybe they can fix everything this time.


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