2.0 Hdi Surging

[billynibbles]

My 2.0l diesel VTS has taken to 'surging' once fully warmed up.

 

By surging, I mean there's a distinct slowing down and picking up again mainly when accelerating gently. It's not violent like 'kangaroo petrol' but it's as if I'm messing with the pedal when I'm not.

 

Two days in the Citroen dealer has so far come up with nothing, although they did update the software.

 

In fact just as they were about to hand me the keys, the engine service light came back on. I've driven it home against my better judgement as they tell me they've now discovered that the 'ECU for the fuel additive system' is not showing up on their diagnostics, and they'll ring me when the part's in.

 

Since this now briefly brings up a 'pollution system fault' warning when you first start the engine (it didn't before I took the car in), could this be the cause of the car hunting?

 

Thank goodness it's still under warranty until 24th November.

[RachyBaby]

My 2.0l diesel VTS has taken to 'surging' once fully warmed up.

 

By surging, I mean there's a distinct slowing down and picking up again mainly when accelerating gently. It's not violent like 'kangaroo petrol' but it's as if I'm messing with the pedal when I'm not.

 

Two days in the Citroen dealer has so far come up with nothing, although they did update the software.

 

In fact just as they were about to hand me the keys, the engine service light came back on. I've driven it home against my better judgement as they tell me they've now discovered that the 'ECU for the fuel additive system' is not showing up on their diagnostics, and they'll ring me when the part's in.

 

Since this now briefly brings up a 'pollution system fault' warning when you first start the engine (it didn't before I took the car in), could this be the cause of the car hunting?

 

Thank goodness it's still under warranty until 24th November.

 

Hi,

 

I've just bought a C4 HDi VTS and its doing exactly this. Did this problem get sorted on your car? If so what was the problem in the end? Has anybody else seen this problem or have any idea what it might be?

 

Thanks for your help,

 

Rachael

[billynibbles]

Hi,

 

I've just bought a C4 HDi VTS and its doing exactly this. Did this problem get sorted on your car? If so what was the problem in the end? Has anybody else seen this problem or have any idea what it might be?

 

Thanks for your help,

 

Rachael

 

Sorry, I only just spotted this. It wasn't till I kept on to them about there being a leaky fuel injector that the problem was eventually fixed. I'm really annoyed as I'd mentioned this on every time the car went back to the workshop with nothing being done. It wasn't like it wasn't obvious - it was covered in oil!