Hi just check your low pressure input to the rail,it should be 3.5 to4.0 bar,if you have a scan tool it will be shown in data pids rail pressure sensor for plausability of .5volts @ koeo or koer at 1.12volts running at idle,should go to 3+volts on a snap,
Any fault codes relative to low pressure?

Good morning,having looked at your wave form,in cylinder,it looks very similar to one taken by Lead daignostics on you tube of a volkswagen with a valve timing issue,
Regards PHicks,

Hiya,as stc has mentioned,there is a sensor in the sump area which will stop the engine starting if there is an oil pressure problem,which also will disable the fuel pumps, i found this out on a cayenne turbo setember 2004 model,ther is information available on identifix in usa, :wink: i hope this i...