noise in crankshaft sensor ?

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noise in crankshaft sensor ?

Postby Jabsam » Wed Apr 11, 2012 3:36 am

hi, I found that my crankshaft sensor waveform have some straight lines up and down. Can somebady tell me what cause these lines ?

1.jpg

2.jpg


the wave1.psdata and wave2.psdata are from the same crankshatf sensor.
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Re: noise in crankshaft sensor ?

Postby Robski » Wed Apr 11, 2012 1:54 pm

Hi what vehicle is this ?

Looking at the spikes it looks like spark ignition & Injection.

Scope a secondary/primary or injector & you will probably find it sync with one !

Are you keeping the probes clear of plug leads etc ?
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Re: noise in crankshaft sensor ?

Postby Jabsam » Mon Apr 16, 2012 8:32 am

the car is Peugeot 307.
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