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Digital WSS (Read 3,382 times)
jimdandy327
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Digital WSS
Mar 30th, 2020 at 4:42am
 
How is everybody reading the new digital wheel speed sensors? What is the set up and hook up? I used my Snap On scope and ac coupled. I back probe both wires and rotate the wheel. It seems like I got a readable wave form. I tried it with the PICO and could not get it right.
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Grant Baker
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Re: Digital WSS
Reply #1 - Mar 31st, 2020 at 8:50pm
 
You might like to read a Motor Age magazine article by Pico's Steve Smith. June 2019, paper page 89, single page article.

http://images2.advanstar.com/PixelMags/motor-age/digitaledition/06-2019.html#92

Let me know if the link doesn't work.


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Ernest
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Re: Digital WSS
Reply #2 - Apr 1st, 2020 at 8:35pm
 
Grant, Any other articles written by Steve Smith in Motor Age you know of?
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Grant Baker
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Re: Digital WSS
Reply #3 - Apr 2nd, 2020 at 6:39pm
 
Ernest,
I haven't come across anything else by Steve Smith written for Motor Age.  The Steve Smith article was found in the "advertorial" section.  The Motor Age website search feature is currently broken.

Other good writing by Steve Smith I have found in picoauto.com case studies, newsletters or forums.
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Ernest
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Re: Digital WSS
Reply #4 - Apr 2nd, 2020 at 6:54pm
 
Thanks Grant!  Smiley
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Tom Roberts
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Re: Digital WSS
Reply #5 - Apr 3rd, 2020 at 8:15am
 

This decade old post may also be helpful:

https://www.autonerdz.com/cgi/yabb2/YaBB.pl?num=1276215303/6
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jimdandy327
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Re: Digital WSS
Reply #6 - Apr 4th, 2020 at 4:42am
 
Thank you for your response. Iknew i was dealing with low amps, but every thing that i tried as fas as hook ups testing voltage at the signal wire, using the sensor ground as the ground, AC coupled, none of those had good results. I have the Weakon ABS tester that I can't seem to make work on them either. I don't have a good Amp probe at this time so I will check into getting one Thanks
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crackerclicker
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Re: Digital WSS
Reply #7 - Apr 7th, 2020 at 1:37am
 
jimdandy327 wrote on Mar 30th, 2020 at 4:42am:
How is everybody reading the new digital wheel speed sensors?


Honestly, with a scan tool.  Some experience may be required, but usually if the WSS data doesn't do the trick then the isolation & dump valve data should help.  Otherwise you'll want to invest in the K110 probe, or make your own breakout with a 10x coil for amperage, for the ones that aren't very obvious with the small voltage scale from the link above.

Grant Baker wrote on Mar 31st, 2020 at 8:50pm:
You might like to read a Motor Age magazine article by Pico's Steve Smith. June 2019, paper page 89, single page article.


That guy has more than a few tricks up his sleeve.   Smiley
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Grant Baker
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Re: Digital WSS
Reply #8 - Apr 7th, 2020 at 8:12pm
 
Hello all,

This is the Steve Smith case study mentioned in the MotorAge advertorial:

https://www.picoauto.com/library/case-studies/juddering-at-low-speed
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