Yes that’s where I was spraying it, I’ve put a new crank sensor on it. The machine I got won’t read fuel pressure or anything
urena
Well-Known Member
leave it parked in ebber vale be set on fire within a hour just a thought
I know youve already been there but the cam sensor is only used to set up the timing on startup, but not used after that whilst its running.
May be worth checking the wiring for continuity to the ecu from the sensor plug with the ecu disconnected.
Just changed cam sensor in mine for non - start fault would spin over on the starter but no injection, which appears to be where you are at present, and it doesn't always set a fault in the ecu !!
May be worth checking the wiring for continuity to the ecu from the sensor plug with the ecu disconnected.
Just changed cam sensor in mine for non - start fault would spin over on the starter but no injection, which appears to be where you are at present, and it doesn't always set a fault in the ecu !!
blodge
Member
Have I got this right?
Engine starts on Easy Start but won't start / run normally so it is not injecting fuel.
This means that either you don't have a high pressure fuel supply or the ECM is not triggering the injectors
If the rail pressure sensor or its wiring was damaged then the ECM would substitute a default value and the engine should start.
Engine stopped when running so not the cam sensor and you have changed crank sensor so the ECM should know where the crankshaft is.
You have eliminated the HP pump so not that and you changed the fuel pressure regulator with the pump from a known working engine - should be OK.
Can you put a fuel pressure gauge on the high pressure fuel line to check that the HP pump is running?
If that is all OK then we have the low pressure fuel system - if the ECM does not think that the low pressure fuel is coming through then it will shut down the HP pump.
LP pump is priming so not the pump relay or the inertia switch but is there pressure at the inlet to the HP pump?
Could the LP fuel sensor be faulty / disconnected?
When you changed the fuel filter did you run the LP pump? - I remember a recent thread on LZ where somebody found a foreign body in the fuel line that was restricting flow.
Can't think of anything else for now but without some fuel pressure readings this is going to be largely guesswork
Engine starts on Easy Start but won't start / run normally so it is not injecting fuel.
This means that either you don't have a high pressure fuel supply or the ECM is not triggering the injectors
If the rail pressure sensor or its wiring was damaged then the ECM would substitute a default value and the engine should start.
Engine stopped when running so not the cam sensor and you have changed crank sensor so the ECM should know where the crankshaft is.
You have eliminated the HP pump so not that and you changed the fuel pressure regulator with the pump from a known working engine - should be OK.
Can you put a fuel pressure gauge on the high pressure fuel line to check that the HP pump is running?
If that is all OK then we have the low pressure fuel system - if the ECM does not think that the low pressure fuel is coming through then it will shut down the HP pump.
LP pump is priming so not the pump relay or the inertia switch but is there pressure at the inlet to the HP pump?
Could the LP fuel sensor be faulty / disconnected?
When you changed the fuel filter did you run the LP pump? - I remember a recent thread on LZ where somebody found a foreign body in the fuel line that was restricting flow.
Can't think of anything else for now but without some fuel pressure readings this is going to be largely guesswork
guineafowl21
Well-Known Member
Just forwarded all this over to my mate who is doing it, thank you butty
****UPDATE***
Started back with original parts.
Got the diagnostic working. No pressure on fuel rail. Can't do leak test until we get pressure. Pump is working. That leaves wiring fault. Stripped out the loom and tested with no faults. Do you think the pump chain could of snapped?
Started back with original parts.
Got the diagnostic working. No pressure on fuel rail. Can't do leak test until we get pressure. Pump is working. That leaves wiring fault. Stripped out the loom and tested with no faults. Do you think the pump chain could of snapped?
Nodge68
Well-Known Member
Not if the cams are turning, as the pump is driven off the same chain. How do you know there's no rail pressure?
Harness checked by continuity. No fuel pressure at rail. Confirmed by diagnostic and cracking injector pipes
I agree completely, I had exactly the same issues as the OP and changed everything and more. The HP pump was recon so I didn't consider it could be faulty. Changed the seals on the regulator off the old pump and put it in the recon pump, started straight away, which was actually quite disappointing considering I'd spent nearly a grand in parts and God knows how many hours fitting them to find 3 quids worth of seals and an hour fitting them fixed it...
