BTW are this engine equipped with VVT (Valve Variable Timing)
Not sure, trying to find my way round this lump.
WPS in which cylinder ?
Coil current probe where ?
It would have been the 2/3 coil wire.
I can't get a grip on this one. I should of mentioned the initial crank when cold is longer than it should be. A touch on the accelerator when cold kills it dead.
I don't think it's AD bulletin although the description is very close. The ports appear very clean.
I fairly sure this lifter problem is not it. I can't see anything unusual in the waveform.
Although again the symptoms match.
Here's the ignition once warm. Most files are to large to upload.