I posted on here recently the problem with my C5 2.2hdi. When starting from cold I get lots of whiteish smoke and a bit of misfire but within 10 seconds or so it clears and runs perfectly. Took it to my garage, diagnosed No 4 injector faulty and it was replaced. Car ran fine, next morning still the smoke. Back to the garage, had another 2 injectors replaced but it is exactly the same.
The car has no other problems and I really need to sort this out.
Please anyone...........give me your ideas
C5 HDI smoking..Help needed desperately
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Re: C5 HDI smoking..Help needed desperately
Have you had a diagnostic run on your car?
It can eliminate much of the guesswork involved in fault finding ad a lot of expense in fitting new parts that turn out not to be needed.
There are a number of our members who offer to run a Lexia diagnostic.
Details to be arranged between you and the Lexia owner.
There is a list of Lexia owners willing to do this here and a link to a map showing their locations is included in the first post.
Otherwise I'd suggest a diesel specialist.
There are a number of things that could be responsible but my best guess is overfueling or an imbalance between the air and fuel delivery. Same thing really.
It can eliminate much of the guesswork involved in fault finding ad a lot of expense in fitting new parts that turn out not to be needed.
There are a number of our members who offer to run a Lexia diagnostic.
Details to be arranged between you and the Lexia owner.
There is a list of Lexia owners willing to do this here and a link to a map showing their locations is included in the first post.
Otherwise I'd suggest a diesel specialist.
There are a number of things that could be responsible but my best guess is overfueling or an imbalance between the air and fuel delivery. Same thing really.
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Re: C5 HDI smoking..Help needed desperately
The garage I go to has done the usual fault code thing which showed injectors. It now does not give any faiults. Is a diagnostics test different to what I have had done?
Several months ago I had the DPF removed and software updated accordingly and the car has been running beautifully. Then one morning I start it up and all the smoke appears.
Several months ago I had the DPF removed and software updated accordingly and the car has been running beautifully. Then one morning I start it up and all the smoke appears.
- myglaren
- Forum Admin Team
- Posts: 25366
- Joined: 02 Mar 2008, 13:30
- Location: Washington
- My Cars: Mazda 6
Ooops.
Previously:
2009 Honda Civic :(
C5, C5, Xantia, BX, GS, Visa.
R4, R11TXE, R14, R30TX - x 4888
Re: C5 HDI smoking..Help needed desperately
Depends on the diagnostic tool they use and how adept they are at interpreting the results.
Lexia is Citroen specific and will worm out a lot more information than a generic code reader. Particularly if used to collect live data rather than just stored faults.
White smoke indicates unburned fuel so there could still be a problem with the injectors.
Equally, the remap to facilitate the removal of the DPF may have failed somehow and be overfueling.
WAG on that one though.
Lexia is Citroen specific and will worm out a lot more information than a generic code reader. Particularly if used to collect live data rather than just stored faults.
White smoke indicates unburned fuel so there could still be a problem with the injectors.
Equally, the remap to facilitate the removal of the DPF may have failed somehow and be overfueling.
WAG on that one though.