Thanks Haylands much appreciate that input. I will check it out. Thank you

I have rest the alerts and driven 200miles since with no EML at all are these cars cursed? Range Rover Vogue SE 2007 L322 4.2 Supercharged 121k. Engine rebuilt @ 120666 Miles

How many times have you ran the car in that 200 miles? Cel code only pops up after 3 runs with a pending code iirc

I didn't know that. So...

I reset codes this morning.
I ran it up to Manchester and stopped for 45mins.
Then drove to city centre and stopped for 2 hours.
Then drove back from Manchester.

I will update you if It comes on again. Range Rover Vogue SE 2007 L322 4.2 Supercharged 121k. Engine rebuilt @ 120666 Miles

A certain member on here had very similar problems going by your input. I'd start with the following mate and see where that leads you as it sounds like a fuelling problem.

Spark plugs,
Fuel injectors (refurb or replace)
Fuel rails

You could I guess try chucking some injector cleaner in but that's not something I'd personally do as I've seen what it can do. I own a subaru impreza so short cuts are a strict no no with them.

Other then that take it too a specialist and get them too live read it and see what the fuelling is like

Keep us updated either way though mate

Hi Bean, thanks for the message the spark plugs have been changed with the engine rebuild.

So I guess my question is if I get no more misfire codes but the engine still shudders at certain points at idle can mechanics narrow down which injector has the issue or do I have to replace all?

Before looking at fuel rails that is? Range Rover Vogue SE 2007 L322 4.2 Supercharged 121k. Engine rebuilt @ 120666 Miles

Bean19844 wrote:

A certain member on here had very similar problems going by your input. I'd start with the following mate and see where that leads you as it sounds like a fuelling problem.

Spark plugs,
Fuel injectors (refurb or replace)
Fuel rails

You could I guess try chucking some injector cleaner in but that's not something I'd personally do as I've seen what it can do. I own a subaru impreza so short cuts are a strict no no with them.

Other then that take it too a specialist and get them too live read it and see what the fuelling is like

Keep us updated either way though mate

I now am not seeing any Misfire alerts. However I have just thrown a P0174 system lean on bank 2 arrggghhhh.

I am doomed with this car.

If with all the history of having a complete engine rebuild and the supercharger completely rebuilt and the fact i saw this same code pre all that work must mean it an historical problem which I am hoping is leaning towards fuel delivery.

However I have a mechanic looking on wednesday and will be checking coil packs and injectors as the next step. I am assuming this is the right thing to do?

I am preying its not fuel rails as they cost a fortune by the look of it. However if it solves it Ill pay what it takes.

I will update you all. Thanks again.

Cheers. Range Rover Vogue SE 2007 L322 4.2 Supercharged 121k. Engine rebuilt @ 120666 Miles

With no misfire codes it's unlikely to be coil packs, fuel rail and injectors are more likely... Pete
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Thanks again Haylands first thing we will check in that case.  Range Rover Vogue SE 2007 L322 4.2 Supercharged 121k. Engine rebuilt @ 120666 Miles

4 injectors don't go bad at the same time all on one bank

Hey Dingg,

the misfire alerts havent come back after clearing errors for 250 miles now. So I wonder if it was a false positive. This P01074 code now seen is an historical one and one I had before engine and supercharger rebuild so I am suspicious of the injectors/coil packs and fuel delivery as that is an area that hasnt been renewed lately.

I will relay findings after Wednesday.  Range Rover Vogue SE 2007 L322 4.2 Supercharged 121k. Engine rebuilt @ 120666 Miles

dingg1 wrote:

4 injectors don't go bad at the same time all on one bank

Haylands wrote:

With no misfire codes it's unlikely to be coil packs, fuel rail and injectors are more likely...

Thanks for that nugget of info Dan I will be checking them tomorrow with mechanic for sure.  Range Rover Vogue SE 2007 L322 4.2 Supercharged 121k. Engine rebuilt @ 120666 Miles

Strong concetration of bg44k fuel cleaner will help you, it did solved constant missfire codes on my 4.4 ajv8  RR HSE 4.4 2006 LPG