This is me trying to use the First Look Sensor to try and measure the cooling system pressure against primary current to diagnose headgasket failure.
This is the original capture
This is the same capture with scaling applied to the blue channel.
This is the same capture with scaling minus/taken away (couldnt think of how to describe sorry)
BLUE= cooling system pressure
RED= cylinder 1 primary current
The scaling button is here, click and play.
NOTE,
I found this diagnostic approach does not work in trying to find out which cylinder it blowing it to the water system.
The results seem to depend on how close, the return pipe to the header tank, is to the water pump.
Although it does prove that the water pump is turning.
As for posting the pictures,
I find it easier to use waveform snips or screen print to change from psdata format.
hth
James
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