Hi all,
I right-click the compression bar graph,and select the "Signal" to bring up a Signal Graph.Could you tell me what is the meaning of the Signal Graph ? Thanks in advance !
Compression Test Signal Graph
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- Location: Olympia, WA - USA
Re: Compression Test Signal Graph
Hi Jabsam,
From what I understand, the bumps represent the acceleration of engine RPM for each cylinder firing event.
You could use a sync probe or secondary lead on channel B as a reference point to help narrow down the faulty cylinder as shown here.
From what I understand, the bumps represent the acceleration of engine RPM for each cylinder firing event.
You could use a sync probe or secondary lead on channel B as a reference point to help narrow down the faulty cylinder as shown here.
Brian Haley
Autonerdz.com
Autonerdz.com
Re: Compression Test Signal Graph
Thanks,Brian。It help me much.CheersBrian Haley wrote: You could use a sync probe or secondary lead on channel B as a reference point to help narrow down the faulty cylinder as shown here.
Re: Compression Test Signal Graph
How do you connect the sync probe, I have tried and never see the sync signal on the channel B. Obviously I am missing something in my setup.
Thanks for any help.
Gary
Thanks for any help.
Gary