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What Does This Wire Connect To?

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Old 05-13-2010 | 01:34 PM
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Default What Does This Wire Connect To?

I started a TB/WP/PKtensioner job on the '93 a month ago and due to travel I'm now finishing up. Unfortunately, I don't know where this wire goes. It shares its harness with the female plug that goes to the TB sensor that connects to the front of the center TB cover. Meaning, this wire and the TB sensor wire share the same harness tube. I assume it goes to a sensor or something near the passenger side cam.

Unrelated, why are balancers different colors? I.e., this one is green, most are orange, etc. Does it have anything to do with the year of production or was it just what was on sale at the time?

Thanks! / Bruce

Last edited by NoVector; 09-09-2018 at 12:47 AM.
Old 05-13-2010 | 01:37 PM
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one of the temp sensors?
Old 05-13-2010 | 01:37 PM
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Hall sensor, on the backside of the pass cam cover backing plate.

Green = GTS damper. Presumeably its guts are built differently than S4 dampers since the crank is different. How's that for a non-tech-having answer?
Old 05-13-2010 | 01:50 PM
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Looks like your nut is loose on the ground wire connected to the cam cover
Old 05-13-2010 | 05:24 PM
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Thanks everyone - It's the hall sensor; however, I now see how I missed it. Below is a picture of what's left of it! Please God, tell me I don't have to take all this crap off again to replace this *****. All that was left was radiator hoses, dip-stick and sparkplug wire harness....

Bruce

Last edited by NoVector; 09-09-2018 at 12:47 AM.
Old 05-13-2010 | 05:30 PM
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Mine did the same thing, they all do. I stuck the spade pins back in the connector the right orientation, then I covered the busted connector with black RTV. It fused it together and is water tight.

you can take it all back apart and replace the connector itself from 928sRUS, but it's a SOB to take out and get back in because of the location.
Old 05-13-2010 | 05:33 PM
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It's on the back side of the cam tower so all your TB/WP work is okay.

It's easier to acess if you remove the pass side cam cover, but I hear others have manged to replace without removing.

Mine did the same thing, but I was already planning on replacing anyhow.

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Old 05-13-2010 | 05:36 PM
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Doc - Excellent! How did you know what the right orientation was for the spades? Or, was there enough left of your connector that you could tell? As you can see, there's not enough left of mine to know which is which. I figure my odds are 50-50, but the way today's going...
Old 05-13-2010 | 05:43 PM
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Yep..pain to get another connector on...I know. Probably as painful to replace it. You have to remove the 1 13mm bolt on the lift bracket which can be done w/o removed the valve cover. Hall sender is bolted with two 4mm allen bolts on the back of the cam tower. Good luck!
Old 05-13-2010 | 05:46 PM
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Originally Posted by auzivision
It's on the back side of the cam tower so all your TB/WP work is okay.

It's easier to acess if you remove the pass side cam cover, but I hear others have manged to replace without removing.
Kurt - Thanks. If it only requires taking off that cover, that's okay. But if it's removing the belts, pulley, etc., etc., I'd rather wait 5 years 'til the next TB/WP change. I'm looking in Vol 1 of the workshop manual now to see what I'm in for.

/ Bruce
Old 05-13-2010 | 05:53 PM
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You need to follow the wire color, you'll have to peel back the connector to orient it right.
Old 05-15-2010 | 01:06 AM
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Okay, so I've peeled back the connector from the harness to the hall sensor and it's: Black / White / Brown (with White being the middle wire). From the hall sensor, the wires are Red / Green / Black (with Green in the middle). Would this be the right way to connect them? I'm not sure what the color of the wire means(?)

Harness Connector Hall Sensor
Black ---------------------------- Black
White --------------------------- Green
Brown -------------------------- Red

Coincidently, if you play with the hall sensor connector long enough, you can quickly destroy the remainder of what was the plug... The good news is, it now allows enough room to plug the spades into the connector. Once I do that, I plan on covering with black RTV and see what happens. Just not sure what wire goes to what.

Thanks! / Bruce
Old 05-15-2010 | 01:32 AM
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The WSM shows the wires and their connectors along with their respective colors. The connectors are marked as "T" on the current flow diagram.
Old 05-15-2010 | 01:36 AM
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Originally Posted by NoVector
Okay, so I've peeled back the connector from the harness to the hall sensor and it's: Black / White / Brown (with White being the middle wire). From the hall sensor, the wires are Red / Green / Black (with Green in the middle). Would this be the right way to connect them? I'm not sure what the color of the wire means(?)

Harness Connector Hall Sensor
Black ---------------------------- Black
White --------------------------- Green
Brown -------------------------- Red

Coincidently, if you play with the hall sensor connector long enough, you can quickly destroy the remainder of what was the plug... The good news is, it now allows enough room to plug the spades into the connector. Once I do that, I plan on covering with black RTV and see what happens. Just not sure what wire goes to what.

Thanks! / Bruce
Yes, this is correct. Clean the terminals before plugging with a bit of sand paper, then seal with RTV. That brown wire is actually a red wire but it's been burnished over time. It might have a white trace around it somewhere.
Old 05-15-2010 | 01:41 AM
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I would just replace it personally.

And that connector you show looks more to me like it is for the gas tank venting valve that sits right above the WP.


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