I often use the current waveform of rail pressure regulating valves, solenoids, position motors etc - pretty much anything you would expect to move smoothly, to detect if it is sticking from a current anomaly. In the case of EGR and VNT the ECU will often cycle them stop to stop at ign on/off. Even ...

The way to do this is to set a trigger for one of the channels that it will never reach - for example set the Cam sensor at 16v and set it all the way at the end (right hand side) of the screen, then set the trigger to repeat or anything except auto. Run the scope on say 2s/div and when the data rea...

No Sign of OP but I would bet pump destruction put little bits of pump all through the fuel system - either bad pump or miss-fuel. That would kill all 4 injectors. Take a sample from the return line and look in a black cap with a strong light for glitter or cloudiness. 1.4V /300 bar is too high on c...

I think Cyl 2's intake valve is leaking on the power stroke spiking the intake with exhaust gas, right at the time Cyl 3 opens it's intake valve. See the overlay pic above. When Cyl 3 misfires it has spark, fuel and compression and all at the right time. That leaves a) measuring error or b) bad air....

Thanks, I like the plan for a one shot, think I'll use that next time I come to the it's mechanical conclusion. I focused on the faulty cylinder(s), eliminated bad new/old parts, eliminated ECU control, and then went in for in-cylinder, though I did do an RC first (all even). I actually now have an ...

This is a really interesting one, N53 Engine, misfires on 3+5 when cold, sometimes 1 as well. When it misfires all the ECU signals are there, spark primary on 2(good) vs 3 (bad) are normal and identical, current signature of (piezo) injectors is same on both. Cam/Crank timing is good. Borescope in t...

B/ What component in a cylinder can cause intermittent compression problems when the engine is cold some mornings and other mornings the engine starts and runs okay for days on end. Maybe take a look for coolant in the cylinder in the morning - that would fit your symptoms. - Inc shorting out the p...

You can save as .png - just click file type in the save page

Click on the channel, click "display" edit the channel name. Pretty sure I have a feature request in for just being able to click (or double/right click) on the channel name in the box to edit it directly which would make it easier, along with being able to turn the channels on/off from the channel ...

I always label the channels on the channel labels. Seems much more intuitive and does not take up screen space.