Pelican Parts Forums - Speed sensor squak

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MixMasterK

10-05-2007 12:41 PM

Speed/reference sensor squak - help

How do I check the speed and reference sensors to see if they are bad? Is it a continuity test while turning the engine over? I think one of them has failed on my '86. Need to get this resolved ASAP!

Kris

callmethewander

10-05-2007 05:16 PM

me too! car won't even start!

944 Ecology

10-05-2007 05:38 PM

Use an oscilloscope, just like the service manual says.

If you don't have an oscilloscope, take it to someone who does.

callmethewander

10-05-2007 08:12 PM

thx george

onZedge

10-06-2007 07:12 PM

Find my reply in this thread:

http://forums.pelicanparts.com/porsche-924-944-968-technical-forum/343212-hiow-test-crank-sensor.html?highlight=SHACK

You can test your reference and speed sensors electrically AND without removing them from the bellhousing.

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