Big Probs On Our C4

[R1-Mini]

Hi all 

Just like to say hi as this is my 1st post

We have a Citroen C4 Coupe VTS 2.0 16v Hdi 2004 78000

Its been great since we owned it until i washed the car, that's when we started having probs

Since i washed it the EML and the ESP/ASR Lights come on together EML 1st then the ESP/ASR

These can be on for a few hours or Days and then the ESP/ASR Light goes out then the EML 

This can happen at anytime 

The code i have are

P1471, P2563, P2670, U1213

We have fitted a new brake switch and modified wiring loom from Citroen (no difference)

Fitted a new Battery (no difference)

Blanked the EGR of but has a 6mm hole in it

Had a new turbo vacuum Solenoid and a new Turbo Copy Position Sensor

But starting to lose love for the car now as i keep getting told its 1 thing after another and nothing fixes it

Its got a mind of its own

The Only we have not bought at the min is a new Engine Bay Fuse Box as been told it could be that ??? But at Nearly £200 Cant buy that to find out its something else that's causing the Issue

Any Help would be Appreciated

Andy 

[coastline taxis]

have you recently had any windows or body panels replaced or worked on. sounds to me like youve got water in a multiplug or ecu connection.  check the scuttle panel under the windscreen to make sure the drain plug isnt blocked then get some wd 40 and squirt every multiplug/connection/fusebox that you can see  i wouldnt buy any more sensors/parts till youve done this or a few more hot days and the problem will probally go away on its own

[R1-Mini]

have you recently had any windows or body panels replaced or worked on. sounds to me like youve got water in a multiplug or ecu connection.  check the scuttle panel under the windscreen to make sure the drain plug isnt blocked then get some wd 40 and squirt every multiplug/connection/fusebox that you can see  i wouldnt buy any more sensors/parts till youve done this or a few more hot days and the problem will probally go away on its own

Cheers Coastline Taxis 

Had no work done  on the car to do with windows or panels

Yes done that all that

Took ecu out and blow out where the plugs go and had a good look for any water marks or green but nothing even cleaned the pins with electrical contact cleaner and still no good 

Also had the engine bay fuse box out and did the same with the same results and still found no water or green

The only thing that was there is some sort of what looks like an oil???

This is the 2nd time its been there

1st time i gave the fuse box holder and the bottom of the fuse box board and good wipe down so all was free from and water,grease, oil and anything else

But when i checked again this time to clean all the plugs there was like some more oil type stuff there again??

Also the 1st thing i did when we bought the car was to check and clean the drain holes so i know there all chear

Edited August 12, 2015 by R1-Mini

[paul.h]

On one of the screen shots the air temperature is showing -50°C so possibly the air flow meter is at fault. It should always be about the outside temperature or a bit higher once the engine has warmed up.

[R1-Mini]

On one of the screen shots the air temperature is showing -50°C so possibly the air flow meter is at fault. It should always be about the outside temperature or a bit higher once the engine has warmed up.

It has got a new 1 on

[paul.h]

Is the new air flow meter the one showing -50°C and if so was it from a Citroen dealer. I have read that lower cost parts from such as ebay may not work as well as ones from Citroen and thus still give faults.

[R1-Mini]

A bit of an update 

The flow meter was a new bosch 1 i dont like buying cheap parts

I ve been taking the sensors of 1 by 1 and re doing the checks with lexia

And when i take the turbo actuator position sensor plug off the p2670 error code goes??

So would that mean i need a new 1 and it setting up ?

Also in regards to the -50 maf that error goes also when i take the turbo actuator position sensor plug off

Cheers for the Help Paul.h  :)

[paul.h]

Could be worth checking the wiring for any damage/shorting and also check any vacuum hoses for any splits/holes, particularly where they connect on to sensors/actuators but as a last resort you may have found a faulty part (looks as if the sensor may be available without the actuator http://www.eurocarcare.net/fuel-management/ecc375p0-turbo-actuator-position-sensor.html ). You could also check if the air doser valve is working, I vaguely remember some odd problem that was related to this (look here http://www.citroen-owners-club.co.uk/citroen/topic/21158-intermittent-loss-of-power/page-2?hl=%2Bdoser+%2Bvalve&do=findComment&comment=79991 ).

 

The following are from the C5 Common Problems pinned topic and highlight possible problems if there are small leaks in the vacuum hoses:

 

11. C5 2.2 hdi 136 hp only, swirl plate diaphragm actuator ball cup breaks.

Vacuum leak/turbo fault codes (any engine).

Located at the left end of the cylinder head. Symptoms may be loss of acceleration, engine management light, increased fuel economy. The plastic ball cup may be replaced on its own (10 mins) or the complete actuator replaced (several hours DIY), about £20 but the cup is not available separately. This topic has a few notes on how to replace the part http://www.citroen-o...ragm#entry40936

 

There is a diy fix here if not able or want to get the dealer part http://www.citroen-o...-to/#entry82945

 

I read in Car Mechanics a case where the actuator had a vacuum leak which resulted in the engine management light and limp mode and fault codes for over boost and turbo regulation fault. The slow loss of vacuum reduced it also to the turbo wastegate so turbo boost level dropped, the ecu then increased the boost control duty cycle which then deactivated the swirl control increasing the vacuum boost and tripping the EML/limp mode. These fault codes have also been reported here and it turned out to be a split in the vacuum pipe to the egr valve actuator - so any cause of a vacuum leak should be looked for before touching the turbo.

 

20. EGR fault codes.

Before replacing any parts, make sure the rubber hose connected to it or any other sensors do not have a small split since this can be the fault. See this post as an example http://www.citroen-o...low/#entry77310

[R1-Mini]

Thanx again Paul

Ive already ordered a turbo sensor and got it for £50 inc from a m8 of a m8 who works at a turbo rebuild place

So just waiting for that then ill fit it and go from there 

I have done a general look over all the plugs and pipes and all look to be good with no signs of water or splits

The swirl plate diaphragm actuator is that what i call the Vacuum pump ?? if yes then thats fine 

Cheers for the Help again m8 

[paul.h]

The swirl plate actuator is not on your engine, only the 136 bhp 2.2 hdi engines, so no need to worry about one of these.

[R1-Mini]

Oh Good 1 less thing to worry about  :rolleyes:

[R1-Mini]

Just a little update

Turbo position sensor changed and all codes gone with EML, ESP/ASR Lights out

Only thing now is the P2565 Permanent Fault, Turbo Valve Position Copy Signal open circuit; short circuit to positive ??

But will hope someone can shed some light on it and can get rid of the Error

All new front Brakes fitted and have to Bleed them tomorrow with the help of Lexia

Then should be good for a test drive

Oh and we have working Headlight washer also with the change of the Pump so the Car is getting there now after all the Probs we have had

[paul.h]

There is some info here that may help with P2565 but in the 2nd to last post for one person the problem went with a long drive http://c4owners.org/plugins/forum/forum_viewtopic.php?175142.0

 

In your previous posts and the screen shot you have P2563 and from these a possible cause could be a faulty turbo vane position sensor or the turbo vanes are sticking http://ww2.justanswer.com/uploads/asemaster327/2008-07-22_005829_ANSWER.pdf http://wiki.ross-tech.com/wiki/index.php/18995/P2563/009571

 

When bleeding the brakes I think you only need to use a Lexia if air has got in to the abs pump. Otherwise normal bleeding methods such as pushing the brake pedal, using a pressure bleeder, using a vacuum bleeder will all work. If changing all the brake fluid remember to also change the brake fluid in the clutch - best way I have found is to suck the fluid through using a Mityvac vacuum bleeder.

[R1-Mini]

Cheers once again Paul H

Thanx for your Help m8

Will post up again once i've taken the Car for a Good Drive

[R1-Mini]

Hi 
Well after about 30 mins of driving all good and then the EML came on and the Depollution Fault 
Car still running fine but we have no Turbo as its seems to be not spinning up ? and no change at about 2000 rpm when the turbo kicks in

It does pull all the way around the rev range but is lacking that turbo pull
We have got a error code of: P2565 Turbo Valve Position Copy Signal, Open Circuit; Short Circuit to Positive 

I'm really losing the Love for this Car now 

But can see Light at the end of the Tunnel lol
Can anyone Help Please

Edited August 28, 2015 by R1-Mini

[paul.h]

Have a look at the link in post 13 for P2565.

[R1-Mini]

So you think i might be the turbo electro valve? a

Any idea where it is on the car ? or any Pics Please

[paul.h]

Looking at the parts diagrams, the only sensor/actuator on the turbo is the one you have already replaced the sensor on. Citroen part no. 0375P0 including the actuator. Maybe the wiring to it or its connection has a fault.

 

If not already done, you can register as another professional and a member of the Citroen Owners Club to see the Citroen parts diagrams as a free service. Use your VIN (VIS) top left to find your car and the turbo can be found under Mechanical, Engine, Turbocharging, Turbo charger oil return hose. http://service.citroen.com/do/changerParametres

[R1-Mini]

There is a Vacuum type pump solenoid somewhere that is attached to the Actuator

The wiring to the Sensor on the Actuator is all Good as that Error has no Gone

Got to find this Solenoid to be able to try and trace a Vacuum leak, can't follow it back from the Actuator as i can't see or feel it unless i strip the engine down again

But Thanx for the Help 

[paul.h]

From the parts diagrams under Mechanical, Engine, Emission control, Gas recycling circuit, the solenoid (electro valve) is shown as part 18 with Citroen part no. 1618S4 for cars to RPO 10746 and part no. 1618S5 from RPO 10746 for the 2.0 hdi 138 bhp engine without a DPF. The part no. should be checked using your VIN. There is a picture of one here to give you an idea of what to look for http://www.ebay.co.uk/itm/GENUINE-TURBO-PRESSURE-SOLENOID-VALVE-CITROEN-PEUGEOT-2-0-HDI-1618S5-/111641824770

 

The Haynes manual or Citroen's Service box procedures do not give the location of this part but the parts diagrams suggest it may be on a bracket at the back of the engine or possibly on the bulkhead. There is a note in Citroen's procedures

'CAUTION : Prior to any replacement of a turbocharger wastegate valve, make sure of replacing the control electrovalve and its venting pipe (Refer to the incident (Info-Rapid) concerned).' - so possibly there have been problems with these parts.

[R1-Mini]

Cheers for that Paul

[R1-Mini]

Well here's a New 1
Turbo still not Boosting checked the Actuator and that's holding vacuum and checked the pipes to it and the Solenoid and no leaks and holding vacuum (should i be able to blow through the Solenoid when off)
And here's the Best bit although the Turbo is not working i've got no Error Codes or Lights on the Dash lol
Please can someone shed some light on this very long tunnel

[R1-Mini]

Another update lol

Turbo came to life all on its own and car is pulling like a good 1 now

Car is great to drive and even better on fuel than it was before

But we still have this p2565 error??

Its had a new turbo actuator sensor and there's no sign of water and the scuttle panel trim is all in place so no water dripping down onto the sensor

Anyone have any ideas??

Ive seen a lot of info about how you have to set up the actuator if its removed, but thinking that if for some reason the sensor has a slightly long shaft then it would give a wrong reading then in turn give a wrong voltage ??

Or am i miles from the mark??

Thanx Andy

Edited October 9, 2015 by R1-Mini