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Video instructions and help with filling out and completing Who Form 944 Pr Requirements

Instructions and Help about Who Form 944 Pr Requirements

Today we're going to show you how to test the RPM sensor and the top dead center sensor for a 1988 944 turbo this will also work for early 944s late 44 and the 911 3.2 Carrera first thing we're going to do is gently peel back the carpet it should be held by Velcro next you'll see a wooden kick board with four Phillips head screws which I've already removed just go ahead and gently pull that out and set it aside now located just underneath the dash you're going to see the DME harness which will gently pry the metal prong away towards the door and lift out by the plastic housing careful so you don't lift by the wires and damage the harness now that the wiring harness has been removed we'll set our multimeter to test the RPM sensor set your multimeter to the ohm setting and then locate pins 8 and 27 on the harness polarity won't matter in this case acceptable resistance ranges should be from 600 to 1600 ohms as you can see we read at about eleven hundred ohms now we're going to test our top dead center reference sensor so in this case we locate pins 25 and 26 again acceptable resistance ranges should be between 600 to 1600 ohms and here we reflect 1100 ohms now we're going to perform a dynamic test to measure the AC voltage produced by the RPM sensor first set your multimeter to AC volt then locate pin 8 and 27 again and before performing this test it's a great idea to make sure that your battery is fully charged that you're in park or neutral and that your handbrake is fully engaged now when you crank the vehicle you should see over 1 volt...

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