Tony & Mike

Thanks for the replies. I agree that they must be sequential after all on a diesel it is crucial to correct running. But what a surprise I have had in scoping this.

I have looked again with more time on screen as Mike suggested, with all four injector voltages (ecu switching side) & still it appears that all injector events are happening together. I initially only scoped two injectors because I thought that they would be high voltage in the 80 volt range & I didn’t want to fry the Pico as I only have two attenuators. Anyway I looked at the voltages & realised that they weren’t excessive.

So all four injectors were scoped…….....
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& A closer look. This looks to be more than a ghost image & is quite misleading.......
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Next I decided to see if there was any current flow to prove one way or another. This next capture confirms what Mike says, that there is no current flow on the other events & only on the actual injection event......
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Again a close look......
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I have had a similar problem with ghosting problems before when capturing all four ignition secondaries on a Mondeo zetec. I must get onto Pico to see if its me or the scope at fault.

Oh does anyone know how to bring the posts back over to the left hand side in the main forum section? It’s a pain when they drift toooo far to the right

Cheers all

Dave