Bmw m62 with lpg help please

Done all the timing via the bmw tech guide ,new chains and everythink inc cam sensors and on start up im getting codes 0011 0343 ...live data says timing advance is between 0°and 16°ie jumping back fourth ...symptoms are rough idle ,i bought it cheap as timing guides had had it and bloke couldn't afford repair ,was so much crap in the sump was that bad ..im scratching my head because the wiring checks out ok and im thinking vanos has had it on bank1 ..can take cam sensor out and it dont make blind difference in idle .thanks in advance ..

The vanos was timed with bmw tool kit and checked with multimeter as instructed in the bmw guide ,i started from scratch ie reset cams etc etc.

4.4 M62B44 engines are in L322 Range Rovers.

Try asking in that section

Bit different to BMW car fitment but same engine. Post 98 should have alusil liners instead of the nikasil shyte like the M60

Timing over or underadvanced in a Vanos issue.