after getting the car re-sync, it was time to sort the miss-fire, so I brought new spark plugs and ht leads, started her up and it was nice to hear all 8 firing took her for a drive and return great mpg 16-18 on petrol, it has been great on lpg is now working fine and returning 14-16 mpg. no...

Yeah i will check the compression hopefully its not that, and i will do.

I just took it out and i think it is still running one short but on the plus side it tick over on lpg for the first time, i need to check the over four plugs then its down to fueling i suppose

The p38 is up and running again thanks to Doz coming down to re-sync the becm and ecm for me, so a big thank you to doz, and thank you for everyone's advise. Now to sort out the miss fire.

ok I will check that the tool I buy has re-sync.

ok it is a gems engine, which is the best diagnostic bit of kit to buy ? and thank you for all your quick responses.

Im not sure which engine it is other than its a v8 4.0 petrol

once again thank you for your reply I will look in the Nanocom and let you know how I got on, I may also look to see if there any software I can get for my laptop to do the same thing.

Thank you for the quick reply I live in the south of England town called Poole so if there is someone near by with a Nanocom that would be great, but if not where would I purchase a Nanocom ?

Hello I have just brought a 1998 Range rover P38 4.0 the battery went flat due to the passenger door not locking on the central locking and someone opening it setting the alarm off. so when I got back the car had a flat battery so I charged it up and put it back in the car, all the normal...