possible overfuelling ?

[stinka]

'01 2.7 tdi lwb

Started it this morn and it chugged and missed. Its not pressurising coolant or losing any, drove from Lincoln to stoke yesterday flat strap, didn't miss a beat so I'm thinking cant be headgasket, and it storms upto over 100 indicated (on a private test track )

Just warming it up on the drive to drop the oil and on idle when u rev it it missfires and a large plume of white/greyish smoke comes out and it misses a bit then clears, revs freely. and will blip nicely. then if u leave it again same, splutter, plume and clears smoke smells like diesel

Its not good on fuel from what i can tell, used £30 coming back from lincoln to stoke then stafford, then back to stoke, so thats gotta be 100 miles ish :nenau

I'm thinking dribbling injector ? not sure though at all obviously, so was wondering if there is a common cause ?

 

[Fez_uk]

it's normal for it to stutter when revving it when not moving.
think it does it about 2-3k revs

 

[arcascomp]

Head gaskets would usually affect the oil/water - try running with the rad cap off to see if the water bubbles - always a sign of failing gasket.

Equally it could be the usual suspects of filters and/or air getting in where it shouldn't.

Lack of burn on startup/misfire - could it be a dodgy glow plug? How easily does she fire up from cold?

Could your return flow of fuel to the tank from the pump be off? I think the usual issue is with it returning too much causing fuel starvation issues but maybe it could go the other way?

This thread http://www.nissan4x4ownersclub.com/forum/showthread.php?t=11236 covers the value that regulates the fuel pressures.

That lot should keep you busy!!

Hopefully someone wiser will give slightly more targeted advice, hope you get it solved.

 

[geoffdown]

'01 2.7 tdi lwb

Started it this morn and it chugged and missed. Its not pressurising coolant or losing any, drove from Lincoln to stoke yesterday flat strap, didn't miss a beat so I'm thinking cant be headgasket, and it storms upto over 100 indicated (on a private test track )

Just warming it up on the drive to drop the oil and on idle when u rev it it missfires and a large plume of white/greyish smoke comes out and it misses a bit then clears, revs freely. and will blip nicely. then if u leave it again same, splutter, plume and clears smoke smells like diesel

Its not good on fuel from what i can tell, used £30 coming back from lincoln to stoke then stafford, then back to stoke, so thats gotta be 100 miles ish :nenau

I'm thinking dribbling injector ? not sure though at all obviously, so was wondering if there is a common cause ?

if ur pushing pass 3k and going fast that sounds bout right how many litre is 30 quid:nenau

 

[arcascomp]

30 quid gets just over 20L these days, maybe one day I'll fill her up from empty!

 

[BIGSEAN]

£84 for 60 litres is my usual weekly use. Bit of motorway, bit of town but the majority fast country roads and i get 400 miles from that so at a guess £30 for a hundred miles is not very good, probably in need of a good service

 

[stinka]

Ok done fuel filter. Put a tin of diesel fuel/injector treatment neat in filter. It's sound now, still stuttery when cold but fine when warm

 

[leafy1]

mini filter