Member Since: 26 Jun 2023
Location: Kent
Posts: 35
Update,, so first things first no more cancer.
Replaced the hpfp belt + tensioner, old belt was intact but signs of age.
No change. Cracked a fuel injector, barely a weep whilst cranking.
Removed the aux belt to aid faster cranking, still not firing up.
Scanned with Snap-on tool, no codes.
Thinking it’s the hpfp itself.
https://www.disco3.co.uk/gallery/albums/us...100x33.gif
6th Dec 2024 4:19 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 5065
What's the lp side doing?
If there was a fault with the hpfp there has to be a code!! Unfortunately the lp side is not monitored beyond the relay so there won't be codes for that!
Remember too the fault could lis elsewhere but in any event there has to be a code stored if there's a fault. yµ (idµ - eAµ) ψ=mψ
6th Dec 2024 5:11 pm
GreatWhenTheyWork
Member Since: 26 Jun 2023
Location: Kent
Posts: 35
Quote:
Update, following Robbie’s thread….
Lpfp is pumping 1.4 Ltrs in a minute.
Pump pressure at the test point in the engine bay is a steady 6 psi, while cranking.
I rigged up a fuel pump and fuel supply to feed into the test point, the engine did try to fire twice but that was it.
I still need to dig into the engine bay and check the hpfp belt, a job for the weekend.
Member Since: 06 Mar 2017
Location: Lost
Posts: 5065
Brand new, but be certain that's where the fault lies before you start chewing that pil.yµ (idµ - eAµ) ψ=mψ
9th Dec 2024 2:55 pm
GreatWhenTheyWork
Member Since: 26 Jun 2023
Location: Kent
Posts: 35
Hi, I’m not sure what to try next.
I have a lr tech looking into it, he has checked cams are moving crank is ok, fuel at injectors (well, lack of).
Air filter clean, scanned with his scanner = no codes relevant to this problem.
No electronic faults to do with fuelling components. https://www.disco3.co.uk/gallery/albums/us...100x33.gif
9th Dec 2024 8:04 pm
PROFSR G
Member Since: 06 Mar 2017
Location: Lost
Posts: 5065
There are two sensors on the hpfp, one for volume and the other for pressure. Both are actively monitored by the PCM and if either does not meet the required specs a fault code will be generated.
Perhaps you need to use a dedicated LR diagnostic tool before you shell out a lot of money. There has to be a fault code if there is a fault present. That's the way the system is designed, so either you do not have a fault and the issue lies somewhere simpler. Or, your diagnostics are not picking up the "actual faults"
Good luck! yµ (idµ - eAµ) ψ=mψ
9th Dec 2024 9:02 pm
GreatWhenTheyWork
Member Since: 26 Jun 2023
Location: Kent
Posts: 35
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