Crank sensor waveform?
Thread Starter
Teching In
Joined: Jul 2008
Posts: 30
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From: Atlanta, GA
Crank sensor waveform? I'm trying to figure out my P0300 and put my crank sensor on an oscope to see what's up. I was expecting a square wave, but I got this. It could easily be caused by my lack of oscope skills (i know what 3 or 4 of those ***** do). But what do you all see when you check this sensor?
The computer's obviously getting something out of this signal.
The computer's obviously getting something out of this signal.
Thread Starter
Teching In
Joined: Jul 2008
Posts: 30
Likes: 0
From: Atlanta, GA
Ok, I don't have a solid answer even from some of the electrical guys I know. But I think my scope is eating the square wave while trying to measure it. The crank sensor must put out very low current (which makes sense, the ECU doesn't need current). In fact it must just charge a small capacitor during events that holds the square wave while nothing is happening, unless you're using my scope/probe setup.
On The Tree
Joined: Oct 2013
Posts: 110
Likes: 0
I'm trying to figure out my P0300 and put my crank sensor on an oscope to see what's up. I was expecting a square wave, but I got this. It could easily be caused by my lack of oscope skills (i know what 3 or 4 of those ***** do). But what do you all see when you check this sensor?
The computer's obviously getting something out of this signal.
The computer's obviously getting something out of this signal.
If you were reading a hall effect switch which came in an old mallory unilite you might get the pattern your expecting.
