pico diagnostics cylinder balance

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pico diagnostics cylinder balance

Postby wellspin » Sat Apr 22, 2017 6:39 pm

Just been trying out the cylinder balance test with my two channel 3223,but I have a small issue with the results.
One cylinder C is always at 1.00 unchanging while its misfire count is varying etc,cant be right?
The car is a 2001 renault scenic 1.6 16 valve.I had all the ancillaries on to get a good signal.I think its a great tool but at the moment I am bit unsure about it,or maybe a lot.
Im running the latest software with a windows seven laptop a 1.5GHZ cpu,3gb of memory,something missing in the operating system possibly


cheers all
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all components on.pddata
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Re: pico diagnostics cylinder balance

Postby STC » Sat Apr 22, 2017 11:18 pm

Hi WellSpin

I don't often use "Pico Diagnostics" Software - Perhaps I should ?

I find that using a CKP capture with an RPM Math Channel riding on it is RAW data. It will pick out intermittent misfires and there is no danger of averaged results. You should try it - I think you will be impressed at the amount of detail with diagnostic value that can be gleaned from a simple easy test.
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Re: pico diagnostics cylinder balance

Postby wellspin » Sun Apr 23, 2017 10:01 pm

STC wrote:Hi WellSpin

I don't often use "Pico Diagnostics" Software - Perhaps I should ?

I find that using a CKP capture with an RPM Math Channel riding on it is RAW data. It will pick out intermittent misfires and there is no danger of averaged results. You should try it - I think you will be impressed at the amount of detail with diagnostic value that can be gleaned from a simple easy test.


I have read a little bit about using that method.Have you any files etc on your experiences of using it setting up etc
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Re: pico diagnostics cylinder balance

Postby STC » Tue Apr 25, 2017 8:10 am

I have read a little bit about using that method.Have you any files etc on your experiences of using it setting up etc


Indeed I do have several files. You can find a few on the forum to look at too !

You may do well to take your own sample, create a misfire and practice with it - Practice makes perfect.

It really is an eye opener - a "wow" moment when it comes together.


If you upload your Crank capture here, I am sure someone will help you with attaching the math channel.
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Re: pico diagnostics cylinder balance

Postby wellspin » Sat Apr 29, 2017 7:49 pm

excellent,Im going to have a go tommorow
does any body know the number of teeth on renault scenics flywheel?
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Re: pico diagnostics cylinder balance

Postby wellspin » Sun Apr 30, 2017 6:39 pm

STC wrote:
I have read a little bit about using that method.Have you any files etc on your experiences of using it setting up etc


Indeed I do have several files. You can find a few on the forum to look at too !

You may do well to take your own sample, create a misfire and practice with it - Practice makes perfect.

It really is an eye opener - a "wow" moment when it comes together.


If you upload your Crank capture here, I am sure someone will help you with attaching the math channel.


Grabbed the rpm waveform here cheers ian
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