Datatek
Well-Known Member
- Posts
- 46,262
- Location
- Near Poitiers SW France
The pump is also energised when the glow plug light is on and/or when the starter motor is operating.
P38 diesel cut out / fuel problem ? and clutch
- Thread starter polsta
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
The pump is also energised when the glow plug light is on and/or when the starter motor is operating.
- Posts
- 58,170
- Location
- Preston Lancs.
They know more that us Keith stop trying to tell them. For one final time.
Fuel pump relay is pulled down by glowplug relay when ignition is turned on with engine cold. Pump is active whilst glow lamp is on.
Fuel pump relay is pulled down when starter is engaged.
Fuel pump relay is pulled down by direct power from alternator when engine is running.
When glow plug relay Z135 is active, power is taken from number six plug line via splice S574 along line ref A6-7 to X135, Inertia fuel cut off switch to power fuel pump. End of story.
Last edited:
Grit Valve
2000 4.6 Vouge
- Posts
- 12,465
- Location
- Plaistow
It's not knowing more than you it's about helping others as I have already said mine ( in tank diesel pump)only works when engine is turning over or running it might have a fault as in it should work in position 2 but appart from that it works in every other way supplying the engine with fuel when needed.so when telling some one that his pump should work supplying fuel in position 2 and like mine it does not he is going to think the in tank pump is shot knackerd needs replacing when in fact why take the tank out spend lots of money when infact he might just have to turn the ignition to position 3 crank start it and hey presto there is fuel comming out need I say more
- Posts
- 58,170
- Location
- Preston Lancs.
Think you should read what was written. The pump SHOULD run whilst ignition is in position II WITH glow lamps lit. If it does not you have a problem. The pump WILL NOT run with ignition in position II AFTER glow lamp goes out or when engine is HOT. That is how it is. I am not feeding false information you are. Pump can be checked for funcionality quite easily, by powering pin five on relay 12 socket with ignition in off position.
Grit Valve
2000 4.6 Vouge
- Posts
- 12,465
- Location
- Plaistow
I did not see your advise on testing pump with pin no 5 on previous post only what it should do not what if it didn't
- Posts
- 58,170
- Location
- Preston Lancs.
Ok mate what we will do is ask Landrover to change the instructions in RAVE to read. "It does not matter if your pump does not run when glow lamps are lit because Josephs doesn't and his runs ok".
Grit Valve
2000 4.6 Vouge
- Posts
- 12,465
- Location
- Plaistow
Thanks but not everybody has rave or is used to fixing cars like the god of p38 you are ps can addy brother -in- laws too as his is the same
Last edited:
storm99
Spreading Joy & Harmony
- Posts
- 21,065
- Location
- Brexited. Living on an island.
:fighting2:
- Posts
- 58,170
- Location
- Preston Lancs.
I am not the god of the P38 in anyway. Not everybody is used to fixing cars that is true. So that is a good reason for someone who isn't, to listen to someone who is, and not go off on your own tangent. I am willing to give you information, just as i try to help anyone else on here. Might i suggest that if you fuel pump does not come on with glow plugs, you check the connections to connector C0123 situated behind the plastic panel to the right side of the drivers footwell. You will find the Inertia fuel cut off switch X135 plugged into it. Up to now i have been outstandingly polite. That is not normal in these circumstances. I must be in a good mood.
Grit Valve
2000 4.6 Vouge
- Posts
- 12,465
- Location
- Plaistow
Thanks I happy to leave mine alone as it does the job whilst engine is running its my moto to leave things alone untill needed its polsta That needs the help here although he hasn't pm'd me since last night, I can't blame him after all this debate i was trying to give him quick simple solution the car stops when running with air bubbles air leak or pump he's was not working on glow plug method so lets try turning it over if it spits out fuel the pump is working quick and simple if not next stage electrics and so on........
- Posts
- 16,482
Not trying to add fuel to the fire but related query:
Wouldn't the addition of the 'Hot Start Fix' which turns the Glows on regardless of Engine Temp also cause the Fuel Pump to run in position 2 even though engine is hot (standard config is not to run pump until engine turning over when engine hot)??
Wouldn't the addition of the 'Hot Start Fix' which turns the Glows on regardless of Engine Temp also cause the Fuel Pump to run in position 2 even though engine is hot (standard config is not to run pump until engine turning over when engine hot)??
Grit Valve
2000 4.6 Vouge
- Posts
- 12,465
- Location
- Plaistow
I think data tag basically had it the first time around by saying check for air remove filter get some one to turn engine over and check for fuel. trouble is I have always thought the pump is just there to pump take the effort of the fip when tank is low hot cold or freezing As well as making it easy to self bleed as there is no hand pump like most cars the fip when supplied with fuel and tank full has the power of its own suction and that of witch has the temperature sensor built in the fip (that's why rr's have two sensors) and this is what controls the amount of fuel to your engine that's why when hot rr's don't start the temp sensor is not working thus your fip cannot
Supplie the right amount of fuel not the in tank pump thus needing a hot start fix witch wil override the fip and allow the right fuel amount and is the cheapest option
Supplie the right amount of fuel not the in tank pump thus needing a hot start fix witch wil override the fip and allow the right fuel amount and is the cheapest option
- Posts
- 58,170
- Location
- Preston Lancs.
Yes.
- Posts
- 58,170
- Location
- Preston Lancs.
As a famous man once said, "All the right notes but not necessarily in the correct order". In this case some of the notes don't exist and some are missed entirely. I know you maybe trying your best but you are talking gibberist. You are like a patient trying to tell a surgeon how to do a heart transplant.
Grit Valve
2000 4.6 Vouge
- Posts
- 12,465
- Location
- Plaistow
So my grammer is not the best , says the private school boy who never experienced life and has only text book phrases
- Posts
- 58,170
- Location
- Preston Lancs.
No mate not trying to be nasty with you. But it is obvious you have a little knowledge, but not enough to be giving advice. You are trying your best but it just clouds the situation. Your understanding of why the fuel temp sensor is there is one example. It does dictate the amount of fuel injected but not for the reason you think it does. Also your understanding of the ECU temp sensor and what that does. If you don't really know it's best not to guess.
- Posts
- 16,482
I always thought that Range Rovers hate starting when hot due to stretch in the FIP timing chain not allowing enough fueling advance to permit easy starting.
A weak ITP will also hamper start performance.
generalfarfar
New Member
- Posts
- 83
- Location
- Stockholm, Sweden
A bit off but polsta how did you get it fixed?
Sames issues here, have also been told that it's a problem with the inline pump as the problem occurs when the tank is about a quarter. Was thinking that if it would be orings and filters and such the problems would occur permanently and not temporarily.
Thanks!
Sames issues here, have also been told that it's a problem with the inline pump as the problem occurs when the tank is about a quarter. Was thinking that if it would be orings and filters and such the problems would occur permanently and not temporarily.
Thanks!
Datatek
Well-Known Member
- Posts
- 46,262
- Location
- Near Poitiers SW France
Test/change the in tank pump.
- Posts
- 58,170
- Location
- Preston Lancs.
Duff fuel temp sensor does effect starting. If the fuel is hot but the sensor thinks it's cold the ECU will not adjust the quantity servo to inject enough fuel for the start cycle.
