Not bad going. I thought all Carbodies used the Nissan diesel engine, pleased to hear there are the odd clean ones around. You've done more miles than me. I bought my Range Rover with LPG already fitted when it had 204,000 miles on the clock, it's now got 327,000......
It had a 2.7 diesel in it originally, but was converted to gas by engine change in 2003.
The gas system works lovely again as of last tuesday, it was cutting out on lpg and not switching to petrol every couple of days for the last 6 months. Ran perfectly on petrol.
Checked everything, changed gas ecus injectors etc (I've got a full set of secondhand spares salvaged from the same vehicle and system type), I couldn't replicate the fault exactly to check where it emanated from and no wiring diagrams available. Eventually I gave in and started stripping back the loom, found the problem in 5 mins, a bad +ve 3 way connection hidden in the loom.
I'd love to get hold of some gas ecu diagnostic stuff, but it probably doesn't exist for my system now.
Have you had any problems with your system, you've done well to get that amount of miles out of it.