Vehicle & Technical > Range Rover

Fuel system problems.

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skip:
I found the test port between injectors 4 and 6, it's a shrader valve thats been fitted onto the fuel rail, it's even got a normal valve cap on it :)  which I forgot to refit and is now rolling around on the road somwhere.

To test the pressure I just used a normal tyre pressure gauge, seems to work very well too, just got to watch out for a small release of petrol when pressing the guage onto the valve.

You make a good point about the valves being cooled by the fuel hitting the back of them.

Range Rover Blues:
Just be careful as most rubber used in things like pressure guages is not fuel proof.

skip:
Yeah I found out! I ruined my digtal one but was expecting it anyway. I've since bought another sacrificial one :lol:

Dave Rogers:
What can cause a v8 to hunt, ie revs rise and fall, tried discnnecting the cold start switch, made no difference, no leaks, pressure seems ok.
Can see the flap valve moving in time as well, goes away if the mix is made more lean and the unburnt fuel smoke goes away, tried to set the mix but no difference!
Runs great on LPG, so confused!

Range Rover Blues:
Is it the flapper then? don't know much about these but the flapper is moving becasue of the extra air drawn is as the engine speed rises.

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