testing the pip ( crank position sensor)
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New User
Joined: Apr 2003
Posts: 10
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testing the pip ( crank position sensor)
How do you test the PIP ( crank position sensor)? My buddy has a 1980 351 bronco ( federal truck) eec 3 ign. system. He has changed everything. Coil , ign. mod , computer, ign. relay , crank position sensor. The engine will crank but no spark until the key starter is released. Then a yellow spark will shoot across the spark plug which is connected to the coil wire. I think the ignition mod might not be sensing crank rotation. Any ideas? Thanks Greg
Post Fiend
Joined: Nov 2002
Posts: 9,987
Likes: 7
From: Memphis, TN
testing the pip ( crank position sensor)
Sounds more like the power to it is coming off an circuit that's shut down during cranking, or it has a bad ground.
The Haynes manual tells how to test the PIP (Profile Ignition Pickup).
The Haynes manual tells how to test the PIP (Profile Ignition Pickup).
Senior User
Joined: Feb 2003
Posts: 140
Likes: 1
From: Arkansas
testing the pip ( crank position sensor)
test it by backprobing the 2 crank sensor pins with a voltmeter set on ac voltage.A quality meter maybe required such as a fluke. I have tried using a radio shack brand for this test before and it will kill a engine that is already running. Dont remember the spec but you should see 1/2 - 3 volts cranking i think.
