3 pin VR sensor

reffo · Post by **reffo** » Wed Apr 16, 2008 9:14 pm

Hey guys, i have a volvo with a 16v turbo engine. I have bought MS-II PCB 3.57, and i have it wired now for fuel only directly to the car without a relay board. I have a problem with the car's VR sensor. It's a 3 pin sensor, i can't get it working with my MS. Any info would be very useful. Thanks a lot.

ChevelleFan · Post by **ChevelleFan** » Thu Apr 17, 2008 6:57 am

I think VR sensors are usually 2-wire, hall sensors are usually 3 wire (power, ground, signal). Are you sure it's a VR?

-Dave

AR 67202 · Post by **AR 67202** » Thu Apr 17, 2008 8:18 am

Bosch has some 3-wire VR sensors. The 3rd wire is shielding though

reffo · Post by **reffo** » Thu Apr 17, 2008 11:21 am

Thanks for the info guys, but i want to know where to connect the 3 wires of the vr sensor (to which pin on the #DB37).
Knowing that i have already the bosch 124 ignition module. Thanks.

Matt Cramer · Post by **Matt Cramer** » Fri Apr 18, 2008 6:29 am

The shield is grounded, the positive wire goes to pin 24, and the negative wire goes to any of the ground pins. It may take some experimenting to see which pin's which but an ohmmeter will show the positive and negative pins are connected together and the shield usually isn't.

reffo · Post by **reffo** » Sat Apr 19, 2008 7:51 pm

Thanks man for the info, i will try this. But what is the difference between an inverted vr signal and a non-inverted vr signal?

bleoh · Post by **bleoh** » Tue Apr 22, 2008 5:04 am

This section might help.

http://www.megamanual.com/ms2/pickups.htm

Brian

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3 pin VR sensor

3 pin VR sensor

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Re: 3 pin VR sensor