Vehicle & Technical > Range Rover
MPG on LPG
Yoshi:
OK, now i got the motor working again this seems to be an issue, i dont understand most of whats said, so could someone do an idiots guide for the lpg setup you see in the picture! lol
Range Rover Blues:
Forget all that stuff about tuning it using the lambda sensor, you don't have one.
If you don't have a lambda sensor then it's going to be a draw=through system, these use the slight pressure drop accross any restriction to measure the air flow and add the appropriate amount of fuel. It's fluid dynamics, I'd say basic fluid dynamics but this stuff f***s my brain too. It's all straightforward untill you relaise that air is compressable but then the same is true in a carburetor.
Anyway, that aside I'm not an expert on setting these things up but from what I can gather from the above you compramise a little on the tuning to get the best performance over a range of driving conditions.
Hence the setting up with the flow rate screw at 3,000rpm then the fine tuning with the mixture screw on the presure reducer/evaporater/diapragm thingy.
I would suspect however that if the car was driving ok and then began to run badly with no obvious cause that the LPG system could be past it's best.
Yoshi:
the car runs fine now, its just i get a really strong smell of lpg when under the bonnet and it seems to be getting crap mpg on lpg!
Range Rover Blues:
Ok then that's progress. I'd suggest you check out the back of the pressure reducer (there will be a breather hole about an inch in diameter) for a stong smell of gas and check all the pipe unions with washing up liquid, sounds like you have a slow leak.
Yoshi:
could be a leak, would explain my p!ss poor mpg on lpg lmao, btw, whats the reducer look like?
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