Mainly for the UK lads on here....Z19DT suffer from broken woodruff keys and damage to the cranksprocket which can throw up camshaft codes and also crankshaft codes...
I hooked up my VP on a known good car (had just had the crank sprocket replaced the previous month) and this is what I got.

I cross referenced it with a pico waveform

Hope it helps someone
I hooked up my VP on a known good car (had just had the crank sprocket replaced the previous month) and this is what I got.

I cross referenced it with a pico waveform

Hope it helps someone