Question" location of problem: anything to do with the starting of the vehicle
hi i'am adam the land rover is a great car when it starts the problem is that the discovery starts only when it wants too for example somethime i would have to let it crank for a couple of second and than the engine would turn on by itself or somethime it would turn on normally like regular cars do or sometime it would need some help after the cranking doesn't work i would have to press on the gas pedal to turn the car on. i have fuel injectors and every mechanic has told me thats not right for me to press on the gas to turn the engine over. i have changed the coil,repaired the distributer which i guess the spring were worn out or something like that, the distributer cap,spark wires,sparks plugs, fuel filter,and fuel pump. i brought the car to the dealership to run the dianostic they said it the fuel injecter and rail but all the mechanic said it can't be why becasue the car run perfectly fine on the road even at high speed its purrs like a kitten. the dealership wanted to charge me a arm and a leg for something that i'm not to sure will even solve the problem. the car never use to do this when i got it and what even weirder i don't even need a fuel pressure regulator it seem though i have to much pressure or less i'm not sure i don't remember but it not connected and the car runs fine strange huh? i don't know what to do the car is in great shape only for that one problem and its runs fine can you solve the mystery i have not changed the distributer or the module please help... adam "
AnswerAdam, there is not much way to diagnose your problem over the Internet. In the 1995 Discovery workshop manual ( available online at www.landrovertechinfo.com ) there is a step by step procedure for testing all the fuel injection components. I suggest you do that.
In your case, the problem with the fuel rail can't be tested electronically. The only sure check would be to remove the rail and inspect it for rust on the inside. If you see rust I'd suggest a new rail and 8 new injectors.
If you remove the rail and you see any wetness around any injectors that's a sign that particular injector is leaking, anad all 8 should therefore be changed.
You can also have situations where the injectors don't work right and you can't see anything, and the only diagnostic proof is to replace them.
If your fuel pressure is not right you may have issues with a clogged filter, a bad pump, or a bad regulator. Again, you will have to exchange those parts to verify a fix.
