*engine repair needed*

[Dangerousfish]

UPDATE!

Showed 9 Fault codes for stupid stuff like, towing hitch lol, got a misfire in cylinder 3, will replace the plugs and see if it occurs again, any reccomendations on plugs?

These threads should help:

http://www.ds3club.co.uk/showthread....3R-spark-plugs

http://www.ds3club.co.uk/showthread....15-Spark-Plugs

http://www.ds3club.co.uk/showthread....he-spark-plugs

[j0anne3001]

It turned out to be the turbo valve and they replaced it under warranty! Just hoping I have no more problems with it! No other car matches up to my baby! X

[Ragnarok]

Regarding TorquePro, Jamie is right. It cannot access fully the DS3 ECU.
It could read hardly any codes on my Racing even if I had CEL lid. If you want to maintain your car self, get DiagBox/Lexia, otherwise take your car somewhere (i.e. dealer, indy) with proper tools.

[nutbolt]

Just read this forum and this matches what I had, THP = Troublesome Horrible Performance.

If you use the car for short drives about the city, it will/has coke'd up the piston valves around 15-20k miles on the odometer, I had the misfire on 1,3,4 cylinders and superknock, turned out the valves were sooty, so was the excessive exhaust soot a tell tale sign on these engines. Mechanic said 894 quid to fix, 6 hour job sandblasting the valves and two oil changes, decide to just reset the warning and cut my losses, sell the car.

[pmk]

Sounds like it needs a walnut blasting

[Superfly Guy]

Speak to Jamie on the forums, he has walnut blasted plenty of THPs on here (inc mine) and charges about a third of that. Two oil changes???? sounds bollox to me.

The valves carbonising is common to all THP engines in all the makes and models that use that engine.

I have a 150 THP and apart from a walnut blasting and a new HPFP have not had a single issue with the engine.

[kenna88]

UPDATE!

Showed 9 Fault codes for stupid stuff like, towing hitch lol, got a misfire in cylinder 3, will replace the plugs and see if it occurs again, any reccomendations on plugs?

Did you fix the problem? I got excactly the same problem and fault code on my car! "Combustion misfiring on cylinder 3 fault". I'm gonna try and change th spark plugs and fuel filter tomorrow and hope for the best BTW hi boys and girls, I'm new here Love Citroën and my 2011 DS3 THP.

[Jamie@SPTuning]

There is no fuel filter on THP

[kenna88]

There is no fuel filter on THP

Haha ok one less thing to worry about I guess.

[Jamie@SPTuning]

There is a fuel filter of sorts but it's part of the fuel lift pump inside the tank.