Using LED tester

Clint F. stungun68 at hotmail.com
Tue Jun 26 21:20:59 EDT 2001


Sounds right.  Most cars engine speed sensors read every flywheel tooth, so 
the light will appear to be constantly on.  Reference sensors and TDC 
sensors pulse once for each cyl., or just at TDC on number 1, from pins or 
tabs on the flywheel, so the pulse is more obvious.


>From: GMBCHEF at aol.com
>To: quattro at audifans.com, urq at audifans.com
>Subject: Using LED tester
>Date: Tue, 26 Jun 2001 13:08:30 EDT
>
>Hi. I was testing the crank sensors on my ur-q today. When checking the 
>speed
>sensor, the LED was on continuosly while cranking, with just a minute
>flickering. Is that the proper way for that to work?  The reference sensor
>was for more obvious. The LED was out while cranking except for a strong
>flash.
>Am I doing it right?
>Gary

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