looking forwards to following the rebuild. 2012 TDV8 Vogue (L322)

PeterRRVogue wrote:

Click image to enlarge

Click image to enlarge

Engine bits delivery

Quote:

Whilst you have the opportunity, the near side exhaust manifold, has a gas temp sensor with wire connection. This often fails, and gives code p0040d. It’s a pain to get out, and often snaps off. It has a sort of brake line nipple connection. You might want to try and ease the nut with a lot of penetrating fluid. Just in case it needs changing, as it’s impossible to deal with if broken off… without getting manifold off, which needs engine out. Mine broke, so I had to make a resistor to simulate the warm engine temp. (helps DPF regents)

Thanks for the tip Johnboyairey! Mine was already partially fixed. I mean, the old one was still in the manifold unplugged and a new one was connected to the harness and just tied to the side of the manifold So will get it right before putting things back

Good luck with this job, and I must say I'm looking forward to seeing any videos that you do

Hi Peter,

Any updates?

Cliff hanger!!!

Any updates?

Hi gentlemen, sorry for a long silence. This engine rebuild has been a real curse on me. The good news is that I after a long struggle I've managed to rebuild the engine and put it back in the car. The bad news is that it still doesn't start. So once again, I need to ask for help from the much wiser community here. The long story short, it seems like I'm not getting the high fuel pressure required in the fuel rail.

Here is what I know or done so far:

1) Bled the Low pressure (LP) side of the fuel system so hard and long that this just cannot be an issue any more
2) Had the High Pressure Fuel Pump (HPFP) tested by a specialist. Like new apparently
3) I don't have any visible fuel leaks
4) The fuel pressure at the fuel filter is 4Bar (see video below)
5) I do get fuel in the fuel rail. Cracked the nut on one of the injectors while cracking the engine and fuel did come out
6) Comparing the live data on IID GAP tool before the engine rebuild and after, before the engine rebuild, the "Fuel Rail Pressure" would build up from 880kPa to over 40000kPa when cracking (before the rebuild). After the engine rebuild, the "Fuel Rail Pressure" keeps fluctuating around 880kPa while cracking (see both videos below)
7) No fault code related to the engine

Before engine rebuild:
After engine rebuild: https://www.youtube.com/shorts/pfeyAaT7RH8

I will post more info on the actual engine rebuild as I have a ton of pics and videos that I need to go though, but ant help on this would be greatly appreciated..

Last edited by PeterRRVogue on 31st May 2025 10:34am. Edited 3 times in total

The pressures are fine on the low and high side for starting. I have a similar issue but I am stuck also (not after an engine rebuild though).

What's your equipment for the connection to the fuel filter pressure port please? 2012 Vogue TDV8 in Aintree green over sand

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Last edited by PeterRRVogue on 2nd Jun 2025 9:10am. Edited 1 time in total

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Last edited by PeterRRVogue on 2nd Jun 2025 9:10am. Edited 1 time in total

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Last edited by PeterRRVogue on 2nd Jun 2025 9:10am. Edited 3 times in total

I used a £20 diesel fuel pressure gauge tester off Amazon to connect it to the fuel filter

Last edited by PeterRRVogue on 2nd Jun 2025 9:11am. Edited 2 times in total

Did you set the HPFP to the correct position when assembling?

3/4 way down of page here:-

https://www.fullfatrr.com/forum/topic68615-15.html

Not saying for a moment that it will prevent starting, but if there's a procedure, I'm a sucker for folllowing it! L405 SV Autobiography LWB SDV8, finished in Aston Martin China Grey by ETO division.

Yes, I also purchased the genuine fuel pump timing tool to time the pump correctly. One thing I didn't have or use was the LH bank sprocket locking tool (JLR-310-247). I just used the LASER timing (cam locking) kit to do the timing.. My understanding is that the bank sprocket locking tool is meant to simplify the timing process, but not absolutely necessary, am I correct? I did manage to tighten the cam sprockets to spec using the cam locking tools. I wonder now if I've missed something, it was almost a year ago now...

Last edited by PeterRRVogue on 2nd Jun 2025 9:38am. Edited 1 time in total