[Diy_efi] check VSS

[Steve Ravet]

=20

> -----Original Message-----
> From: diy_efi-bounces at diy-efi.org=20
> [mailto:diy_efi-bounces at diy-efi.org] On Behalf Of Dave Williams
> Sent: Wednesday, October 06, 2004 7:50 PM
> To: A list for Do-It-Yourself EFI
> Subject: [Diy_efi] check VSS
>=20
>   How do I check a junkyard GM VSS to see if it's okay?  Can=20
> I go it with a voltmeter?
>=20
>   I have a pair of them from mid '80s S-10 pickups, and I'd=20
> like to know if they work before crawling under the truck.

I think those are the hall effect sensors.  Driven by a gear, right?  =
The hall effect sensor acts like a switch to ground as it spins, so you =
should be able to check it with your multimeter set on ohms.

The other kind is a reluctor sensor which creates an A/C voltage.  This =
kind has the reluctor wheel on the output shaft and would be harder to =
check off the car.

--steve


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