Hi
Who can I synchronize the right cylinder in Crankcase pressure running?
I use with FirstLook or WPS500X.
I don’t understand the cylinder #1 and #4 go down together.
One in power stroke and one in intake stroke.  
Did I need to look on the pattern power stroke??
And if I scope Crankcase pressure in cranking (fuel is disable) in which cylinder I need to look?
In 4 cylinder engine, 2 cylinder go up TDC and  2  cylinder go down and BDC.
Can you help me?

Thanks
shay

Hello Shay,
    If I understand your questions correctly, you are wanting to synchronize your crankcase pressure pattern so you can tell which cylinder is which?  If you use a channel of your Pico Scope and your synch. probe or a KV probe to #1 cylinder plug wire for either a distributor system or distributorless (coil pack waste fire) system then you can tell which piston pulse is being made by the number 1 piston on the power stroke.  If the vehicle is equipped with Coil On Plug ignition either, use a primary ignition event or a secondary event (using a plug wire if possible) to make your synchronization possible.
    Also, when you are setting your scope up to test crankcase pressure pulses, be sure to put enough time on the screen to be able to capture several engine rotations.
    If you are a Picogroup member, Brian has made an excellent tutorial movie on setup and use of the WPS500 pressure transducer including checking crankcase pressure.  That tutorial probably explains how to set up your scope and WPS500 better than I did here plus it gives you a visual way of learning how this test is set up and run.   ;)
    I do hope this helps.  Have a great day!   :)
Take care,
Doug S.