Nissan Micra 1.2 2008 running rough, worse from cold

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wilkwhit
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Nissan Micra 1.2 2008 running rough, worse from cold

Post by wilkwhit » Tue Aug 09, 2016 9:18 am

Hi, we have a 2008 Nissan Micra 1.2 that I suspect the timing may have jumped but have compared it to various wave forms and I can't decide if it's good or bad?

John
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STC
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Re: Nissan Micra 1.2 2008 running rough, worse from cold

Post by STC » Tue Aug 09, 2016 5:06 pm

I don't have anything to compare your waveform to just now, but I notice that both your CKP and CMP are Minus -2 & and -3 volts. I stand to be corrected but that looks wrong to me ? Especially the CMP where the base line drifts by 500mv+
Where have you earthed the Scope ?

Would this not throw a P0341 if timing was adrift ?? The older ones ~2002 / 2003 certainly did.

As for timing, can you get a vacuum reading with a gauge T'eed in ?

hvac
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Re: Nissan Micra 1.2 2008 running rough, worse from cold

Post by hvac » Wed Aug 10, 2016 8:34 am

If you compare to this image it seems your timing is off.
nissancrankcam.jpg

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