Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

This is the Forum for all your Citroen Technical Questions, Problems or Advice.

Moderator: RichardW

Post Reply
User avatar
Fake Concern
Posts: 1033
Joined: 27 Dec 2012, 10:41
Location: East Sussex
My Cars:
x 64

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Fake Concern »

RichardW wrote: 03 May 2018, 12:41 It doesn't appear to have a MAF, so not sure how it is picking up a flow coherence error. I can't see an EGR valve either, but I suspect it has one? Does it have a fuel filter, and has it been changed?

The fuel filter is just a strainer in the tank, not likely to have been changed, but if it was blocked wouldn't it be giving an error for running lean?
RichardW wrote: 03 May 2018, 13:16 Yes, I saw that, but it calls it an 'air pump' not an EGR valve :?

There is also a vac solenoid on the air intake circuit, but there's no indication what it's for!!


I believe the vac solenoid is to open the second intake on the air resonator at higher revs.

Another question, if the timing belt had been put on one tooth out, could that give the errors we have? Presumably the valve timing being out would affect both intake and exhaust flow?
Fake Concern, Volvo C30 T5 2011
Mrs Concern, Renault Moodus 1.6 Privilege 2004
Ms Concern No1, Pug 207 1.4 2008
Ms Concern No2, Citroen C4 VTS 2007
User avatar
Fake Concern
Posts: 1033
Joined: 27 Dec 2012, 10:41
Location: East Sussex
My Cars:
x 64

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Fake Concern »

Starting seem like I'm clutching at straws now! However, this article is very interesting

http://enginedtc.com/p1161-citroen-c4

Image
Fake Concern, Volvo C30 T5 2011
Mrs Concern, Renault Moodus 1.6 Privilege 2004
Ms Concern No1, Pug 207 1.4 2008
Ms Concern No2, Citroen C4 VTS 2007
User avatar
xantia_v6
Forum Admin Team
Posts: 9053
Joined: 09 Nov 2005, 22:03
Location: France or NewZealand
Lexia Available: Yes
My Cars: -
1997 Citroen Xantia V6 (France)
1999 Citroen XM V6 ES9 (France)
2011 Peugeot 308 CC THP 155 (NZ)
1975 Jaguar XJ-S pre-HE (NZ)
x 825

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by xantia_v6 »

Fake Concern wrote: 04 May 2018, 22:25 Starting seem like I'm clutching at straws now! However, this article is very interesting

http://enginedtc.com/p1161-citroen-c4

Image

I would not take that site seriously at all. It is just a collection of generic OBD codes which have generic descriptions and the name of a specific car model attached. They couldn't even give a valid engine type for the C4. Does anyone here have a C4 with a turbocharged single cylinder engine with opposed pistons?
User avatar
Fake Concern
Posts: 1033
Joined: 27 Dec 2012, 10:41
Location: East Sussex
My Cars:
x 64

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Fake Concern »

I am now totally confused by this!
I finally got Lexia/Diagbox to work again after reinstalling Windows three times due to Lexia refusing to install without errors. Now I have these faults
IMG_5205.JPG
IMG_5206.JPG
IMG_5207.JPG
So now a missfire? Could that be a failing Coil pack?
Also P1623-Engine torque given *1 What does this even mean?
Plus what was interpreted as intake manifold leak P1160, is now shown as incoherence between butterfly position and 1 wire/pressure
Fake Concern, Volvo C30 T5 2011
Mrs Concern, Renault Moodus 1.6 Privilege 2004
Ms Concern No1, Pug 207 1.4 2008
Ms Concern No2, Citroen C4 VTS 2007
User avatar
xantia_v6
Forum Admin Team
Posts: 9053
Joined: 09 Nov 2005, 22:03
Location: France or NewZealand
Lexia Available: Yes
My Cars: -
1997 Citroen Xantia V6 (France)
1999 Citroen XM V6 ES9 (France)
2011 Peugeot 308 CC THP 155 (NZ)
1975 Jaguar XJ-S pre-HE (NZ)
x 825

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by xantia_v6 »

If you look at the mileage and engine RPM where each of those faults occurred, how do they relate to when the car went into limp mode?
User avatar
Fake Concern
Posts: 1033
Joined: 27 Dec 2012, 10:41
Location: East Sussex
My Cars:
x 64

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Fake Concern »

xantia_v6 wrote: 13 May 2018, 21:22 If you look at the mileage and engine RPM where each of those faults occurred, how do they relate to when the car went into limp mode?

No idea, somehow this time the report didn't get saved, so I only have the photos. I cleared the faults and will drive it a bit before reading any codes again.
Fake Concern, Volvo C30 T5 2011
Mrs Concern, Renault Moodus 1.6 Privilege 2004
Ms Concern No1, Pug 207 1.4 2008
Ms Concern No2, Citroen C4 VTS 2007
User avatar
Cutac
Posts: 348
Joined: 28 Aug 2016, 19:36
Location: Croatia
My Cars: 2011 B7 Citroen C4 1.4 VTi
2006 Citroen C4 2.0 VTS
x 20

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Cutac »

Not going to be helpful, but could you please explain 'open the second intake on the air resonator at higher revs'.
Where is that second intake located? I thought there's just one pipe from the grille to the resonator and then from the resonator to the throttle body.
User avatar
Fake Concern
Posts: 1033
Joined: 27 Dec 2012, 10:41
Location: East Sussex
My Cars:
x 64

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Fake Concern »

Cutac wrote: 25 May 2018, 14:46 Not going to be helpful, but could you please explain 'open the second intake on the air resonator at higher revs'.
Where is that second intake located? I thought there's just one pipe from the grille to the resonator and then from the resonator to the throttle body.

In the resonator box

http://www.aussiefrogs.com/forum/techni ... rtant.html

Just for Cutac, my VTS, LEZ
IMG_5122.JPG
Fake Concern, Volvo C30 T5 2011
Mrs Concern, Renault Moodus 1.6 Privilege 2004
Ms Concern No1, Pug 207 1.4 2008
Ms Concern No2, Citroen C4 VTS 2007
User avatar
Cutac
Posts: 348
Joined: 28 Aug 2016, 19:36
Location: Croatia
My Cars: 2011 B7 Citroen C4 1.4 VTi
2006 Citroen C4 2.0 VTS
x 20

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Cutac »

Interesting, thanks :)
Is there a way I can test if this works? :D
Car is faultless on Diagbox, but still :D

Wheels on yours look nice, I guess they are quite a bit lighter than Resolfens?

I've got a picture of mine taken on Thursday. It was a rainstorm and I got very wet but it paid off, or at least I think it did :)
Image
User avatar
Fake Concern
Posts: 1033
Joined: 27 Dec 2012, 10:41
Location: East Sussex
My Cars:
x 64

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Fake Concern »

Cutac wrote: 27 May 2018, 01:03 Interesting, thanks :)
Is there a way I can test if this works? :D
Car is faultless on Diagbox, but still :D

Wheels on yours look nice, I guess they are quite a bit lighter than Resolfens?

I've got a picture of mine taken on Thursday. It was a rainstorm and I got very wet but it paid off, or at least I think it did :)
Image

I agree
Don't know
I still don't know (mine always gives faults I didn't know it had on Lexia/Diagbox)

The wheels are Team Dynamics Pro Race 1.2 in 18 inch x 8 size and are a lot lighter than the resolfen when you pick them up. Seem exactly the same when driving though!

Great picture! Are you on Instagram?
Fake Concern, Volvo C30 T5 2011
Mrs Concern, Renault Moodus 1.6 Privilege 2004
Ms Concern No1, Pug 207 1.4 2008
Ms Concern No2, Citroen C4 VTS 2007
User avatar
Cutac
Posts: 348
Joined: 28 Aug 2016, 19:36
Location: Croatia
My Cars: 2011 B7 Citroen C4 1.4 VTi
2006 Citroen C4 2.0 VTS
x 20

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Cutac »

Really, no difference between wheels when driving? I would expect much lighter wheels to transform the car.

I agree about faults. My gives weird faults on Diagbox which cancel themselves out. When I switch automatic AC on, Diagbox/BSI records temperature sensor fault, but then immediately says the opposite. Weird, but I suppose it's some kind of a confusion for some reason :)

Thanks, but I'm not on the Instagram. I was thinking about it but realized no one would follow a guy taking pictures of Citroens :D
User avatar
GiveMeABreak
Forum Admin Team
Posts: 37014
Joined: 15 Sep 2015, 19:38
Location: West Wales
My Cars: C3 Aircross SUV HDi Flair Peperoncino Red (The Chili Hornet)
C5 X7 2.0 HDi Exclusive Mativoire Beige (The Golden Hornet)
C3 1.6 HDi Exclusive Aluminium Grey (The Silver Hornet)
C5 MK II 2.0 HDi Exclusive Obsidian Black
C5 MK I 2.0 HDi SX Wicked Red
Xantia S2 2.0 HDi SX Hermes Red
C15 Romahome White
XM 2.0 Turbo Prestige Emerald Green Pearlescent
XM 2.0 Turbo Prestige Polar White
XM 2.0 SX Polar White
CX 20 Polar White
GS 1220 Geranium Red
CX 2.4 Prestige C-Matic Nevada Beige
GS 1000 Cedreat Yellow
x 5648

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by GiveMeABreak »

Are you trying to say Citroen owners are all sad? :rofl2:
Please Don't PM Me For Technical Help

Marc
User avatar
Cutac
Posts: 348
Joined: 28 Aug 2016, 19:36
Location: Croatia
My Cars: 2011 B7 Citroen C4 1.4 VTi
2006 Citroen C4 2.0 VTS
x 20

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Cutac »

Well, not much people like Citroen at all, and even less people would like to see photos of a c4 every few days :D
User avatar
Fake Concern
Posts: 1033
Joined: 27 Dec 2012, 10:41
Location: East Sussex
My Cars:
x 64

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Fake Concern »

Cutac wrote: 19 Jun 2018, 22:36 Well, not much people like Citroen at all, and even less people would like to see photos of a c4 every few days :D

Lots of C4 fans on Instagram, have a look!
Fake Concern, Volvo C30 T5 2011
Mrs Concern, Renault Moodus 1.6 Privilege 2004
Ms Concern No1, Pug 207 1.4 2008
Ms Concern No2, Citroen C4 VTS 2007
User avatar
Cutac
Posts: 348
Joined: 28 Aug 2016, 19:36
Location: Croatia
My Cars: 2011 B7 Citroen C4 1.4 VTi
2006 Citroen C4 2.0 VTS
x 20

Re: Help diagnosing C4 VTS problems (Ex Davie LEZ VTS 180)

Post by Cutac »

You're not mad, man!
There's a huge fan base, and to make it better, a girl has a red Coupe and lives 100 kilometers from me 8-)

For real, I might just make an Instagram account. I'll have you as a follower. Probably... :mrgreen:
Post Reply