JamesD wrote:Hi Ron
You can use your Pico.
Hook into ch 1 into cam sensor, ch 2 into crank and ch 3 into a synchronising signal (injector or ignition).
Set the trigger on ch3 (rising edge) and the timebase to 200ms (engine takes 150ms to do suck squish, bang and blow at 800 rpm). Move the trigger across the screen until you see two complete crank revolutions.
Next, you can look for a repatitive relationship between the cam and crank (count the crank sensor pulses between it and the cam sensor). Use the cursors to help with this lining up process.
Finally activate the variable valve solenoid (use a scan tool or use a jump wire between the VVT solenoid control wire and earth) and look for the reference you took before to have moved to the left (advancing the intake cam).
It is a bit difficult to explain here, but I hope you get the gist?
Let us know how you get on.
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