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Ride Height Sensor
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Post Ride Height Sensor 
I posted the pin out on the FB post, but here is the actual diagram from the book. Looks like only pins 1,4, and 5 are used. Leads on 1 and 5 with the wiper arm on 4. Not sure the values.


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Shawn Waggoner
Track Rat Motorsports
Lake Worth, FL
www.trackratmotorsports.com
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Future reference, you can get all the wiring diagrams for BMW's here:

http://www.bmw-planet.com/diagrams/

Pretty handy site.


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Shawn Waggoner
Track Rat Motorsports
Lake Worth, FL
www.trackratmotorsports.com
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My god. I think I just died and went to motorsports heaven. If that's accurate we have a very compelling suspension datalogging solution.

Any idea on the connector?


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Brent Picasso
Founder, Autosport Labs
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brentp wrote:

Any idea on the connector?


Not sure on the connector. Not sure where to get that one.


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Shawn Waggoner
Track Rat Motorsports
Lake Worth, FL
www.trackratmotorsports.com
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For record keeping the sensor is OEM part # 37140141444

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Just verified a 0.1 to 4.9v voltage swing across 90 degrees of travel, using the diagram above. Looks like we have suspension travel sensor! Very Happy


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Brent Picasso
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What was the resistance values and what did you use for the pull down?


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Shawn Waggoner
Track Rat Motorsports
Lake Worth, FL
www.trackratmotorsports.com
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No resistance needed. Ignore what's in the ECU box; that's just for your reference. The device produces a variable voltage output.


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Brent Picasso
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Whoa nice find! These could be useful for a lot more than suspension travel too!

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They're amazing! Our new intern will be installing 4 of them on a race car and documenting the installation. Actually kind of jealous, they're that cool! Smile

https://www.facebook.com/photo.php?fbid=10151742787764231&set=a.424265584230.197157.34953614230&type=1


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Brent Picasso
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We're spinning up possbily using these sensors on a sponsored nascar vehicle. Anyone know the connector for this sensor?

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Never mind; this looks like the connector housing:

http://parts.miniofsouthatlanta.com/products/Socket-housing-6-POL/1441984/61138383300.html

From our original facebook thread here:
https://www.facebook.com/34953614230/photos/pb.34953614230.-2207520000.1394467044./10151708427119231/?type=3&theater


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Brent Picasso
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Update. The connector does not come pins and wires. To complete the installation you would need individual wire pigtails.

61130005199 for white wire
61130006665 for red with stripe

I imagine there may be other wire color combinations available.

Evidently you will need 3 wires for GND, 5v and signal.

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Hey

Is there an update how good and reliable it works?

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While we didn't followup, these type of sensors typically work very well. It is the best, if not cheapest, option for determining ride height.


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Brent Picasso
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