need ur help pulling my hair out.please

hi all rangerover 3.5v8 1987/88 flapper fuel system type. right been working on this classic of mine for weeks.basically its been made to start and run on lpg,yes its starts like a petrol . well the petrol side had been disconnected. so put fuel pipe back on.but problem in getting no live to the fuel pump. now i was sent a workshop manual by a member yesterday but my computor wont open it.so i have located the fuel pump relays i think but if some one can tell me what all 4 of the relays are and what they do. all so picture 2 i found more relays next to the steering colume can some one please identify them for me please. i have done a ecu test today on pin 10 .with one prong to the ecu and other prong down to ground ignition off should read no voltage but i get voltage so it says change fuel pump relay. need to know which one is the main relay.any help is good thanx

Is photo 1 the relays under the seat

What ever the birds nest is, its a cause of concern.

yes photo i from under seat. yes its like abirds nest .it look like on some wiring been some wires melted .i am getting my head round it but just need it confirming that which 2 relays are 1 main main fuel relay and 1 pump fuel relay. what i have found that the yellow wire which has been connected into the white wire is permenat live to the fuel pump .so it makes me think they lost live and dident know how to fix it properly.picture 3 has a fused relay so i need to know what that one is for,

Should be 3 relays under seat ex solihull so my guess is no4 is the LPG and that is connected into the fuel relay.
Watch out some of the gunslingers in the early days left live and dodgy open connection on relay 4 (guess how I know) so check for live and short to 0 volt

ok will do lpg works fantastic. just the petrol side im trying to workout,thanx

3.5 V8 Flapper system Diagnostic Manual - Land Rover Technical Archive - LR4x4 - The Land Rover Forum

Work through that. I did on mine ('89 flapper). You can check absolutely everything fuel system wise. Should help get to get to the bottom of it.