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lornejay1

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Posts : 847
Join date : 2008-11-05
Age : 56

PostSubject: Speed sensor module   Sat Feb 24, 2018 12:11 pm


Looking for the one that is located under the dash of a 91 sedan.My father in law is in need of one. I asked about the one in the trans but he changed that!his mechanic says there is this other one.

i am not familiar with those era's since scrapping the 91 wagon.

Thanks Lorne
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convert2diesel



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Join date : 2009-01-05
Age : 66
Location : Manotick, Ontario

PostSubject: Re: Speed sensor module   Sat Feb 24, 2018 1:51 pm

What you need is a VSS Buffer.  The part can be found in any GM of similar vintage (pre-1994 or before full electronic transmissions).  It can be either a DRAC (uses jumpers to determine ratios) or  VSSB (has more jumpers).  What ever version you use, it will have to be calibrated to the tire size and rear end ratio (break out the soldering iron).  See article below:

http://tbichips.com/?page_id=504

Good luck on your quest.

Bill
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Fred Kiehl

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Join date : 2009-11-13
Age : 69
Location : Largo, FL 33774

PostSubject: Re: Speed sensor module   Tue Feb 27, 2018 12:32 pm

The ones in the B-bodies are all the same. The VSS gear ratio changes the input to make the speedo, CC, and computer happy. I will try to grab one when I go to the yard this week.
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lornejay1

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PostSubject: Re: Speed sensor module   Tue Feb 27, 2018 12:45 pm


So the 96 SS I have for parts will have what he needs Fred?

Can you describe what I am looking for and the general location?

Does his mechanic have to do more after installing to make the speedo work?

Thanks I appreciate it

Lorne
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Fred Kiehl

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Location : Largo, FL 33774

PostSubject: Re: Speed sensor module   Tue Feb 27, 2018 1:00 pm

I do not know if the 94-96 will work. The input from the electronic VSS can not be adjusted to match the gear ratio and tire size, like the 91-93s. The computer does the calibration in the 94-96 cars. The 91-93 parts are all the same, because you change the gears for the VSS to adjust for the gear ratio and tire size. The 91-93s computer, CC and speedometer/odometer only read the output of the buffer.
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lornejay1

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Age : 56

PostSubject: Re: Speed sensor module   Tue Feb 27, 2018 1:48 pm

Ok,if you are able see if you can pick one up. At your convenience,Thanks Fred

Lorne
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Fred Kiehl

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Age : 69
Location : Largo, FL 33774

PostSubject: Re: Speed sensor module   Wed Feb 28, 2018 11:05 pm

I got it today. I would like $35 shipped. I accept paypal "to friends and family" at jfkiehl@ij.net. Send your address as a message/note.
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lornejay1

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Age : 56

PostSubject: Re: Speed sensor module   Thu Mar 01, 2018 9:07 pm

Thanks Fred, I will paypal you,tomorrow!. I reallynappreciate this amd he will even more

Lorne
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Fred Kiehl

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Posts : 4766
Join date : 2009-11-13
Age : 69
Location : Largo, FL 33774

PostSubject: Re: Speed sensor module   Fri Mar 02, 2018 7:18 am

Thanks
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