p38 v8 camshaft sensor

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p38 v8 camshaft sensor

Postby sassanach » Thu Jul 03, 2014 12:51 pm

forgive me,but this is all new to me,this is a trace of year 2000 (thor)4.6 range rover camshaft sensor,i am trying to fix a misfire.there is a break at the top of the waveform...is this normal? could it be causing my problem?
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sassanach
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Re: p38 v8 camshaft sensor

Postby Autonerdz » Thu Jul 03, 2014 2:43 pm

If you mean the small dips with the spikes, then no worries. Those are voltage drops caused by the coil charging events. The spikes are EMI from the coil firing. They look like upside down coil current ramps for a reason. :wink:
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Re: p38 v8 camshaft sensor

Postby sassanach » Thu Jul 03, 2014 6:30 pm

thank you for that,the only reason I wondered was that I have another camshaft waveform of off an identical range rover which does not have the same pattern,and that one runs perfectly.i,m just basically trying to find any differences between the two vehicles
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