Anyone tell me what this live data means please

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

Moderator: RichardW

Benscab123
Posts: 159
Joined: 09 Jul 2019, 20:33
x 3

Anyone tell me what this live data means please

Post by Benscab123 »

Could someone please tell me what this diagbox data means please. Trying to see why I’m getting turbo underboost. Thanks.
Attachments
34B944D2-9781-4A67-A450-C2B63FD7E3CD.jpeg
435F78C0-478C-474E-802E-D138B7BD2186.jpeg
86A8F8FC-D8C5-4DEF-9394-9BE80F688D93.jpeg
07084E6F-F0DF-4FB4-ACA7-14A46AD76F6A.jpeg
135C5D99-3757-4E62-8EAD-7F6355D37E2A.jpeg
1B1AC12C-607D-437A-AD38-F5027C9F6E77.jpeg
1CAA4093-7CD2-471C-9878-BA902B4BB98E.jpeg
4BBEA5DA-C765-4AA1-BF55-0CAE42C7EE36.jpeg
3DEB0109-A0E9-451C-9D1E-A9FCC93A0375.jpeg
F218A22B-800F-4457-81F0-0F9C5C151242.jpeg
665D4CE0-3020-48BA-8715-A31BB4649B7C.jpeg
7DF2C9CF-87E7-4C33-84A8-6979C4C2DC33.jpeg
2849DA45-5024-49BB-845D-D1C206B3AD49.jpeg

User avatar
citroenguy
Posts: 46
Joined: 21 Sep 2017, 18:05
x 11

Re: Anyone tell me what this live data means please

Post by citroenguy »

I'd check the vakuum lines for the turbo electrovalve, and if they're fine i would change the electrovalve. It is a common fault on these.

Benscab123
Posts: 159
Joined: 09 Jul 2019, 20:33
x 3

Re: Anyone tell me what this live data means please

Post by Benscab123 »

I’ve just changed the electrovalve

User avatar
citroenguy
Posts: 46
Joined: 21 Sep 2017, 18:05
x 11

Re: Anyone tell me what this live data means please

Post by citroenguy »

Are these lines ok, not melted etc?
c4 diesel DV6TED4 vakuum.png
There may be more vacuum lines i don't remember..

Benscab123
Posts: 159
Joined: 09 Jul 2019, 20:33
x 3

Re: Anyone tell me what this live data means please

Post by Benscab123 »

Can’t really see much of that line, but if anyone can tell me the part number I’ll order a new one to be on the safe side .

Benscab123
Posts: 159
Joined: 09 Jul 2019, 20:33
x 3

Re: Anyone tell me what this live data means please

Post by Benscab123 »

Anyone ????
Could really use a diagram of which vacuum lines/location please.

Benscab123
Posts: 159
Joined: 09 Jul 2019, 20:33
x 3

Re: Anyone tell me what this live data means please

Post by Benscab123 »

Had vacuum lines tested and all ok, so what now ?

User avatar
citroenguy
Posts: 46
Joined: 21 Sep 2017, 18:05
x 11

Re: Anyone tell me what this live data means please

Post by citroenguy »

Do you have enough vacuum at the turbo actuator ?

This had a new turbo right ? Was the fault present before or is it "new"

Benscab123
Posts: 159
Joined: 09 Jul 2019, 20:33
x 3

Re: Anyone tell me what this live data means please

Post by Benscab123 »

The original fault on the old turbo was OVER boost, on the new one it’s UNDER boost. Had vacuum checked by mechanic and he said it’s good. One thing I have noticed over the last couple of days is that the large air intake pipe to the turbo keeps blowing off (the one with the orange rubber seal). According to google this is caused by crankcase pressure, not sure if related but it wasn’t blowing off before I changed the standard radiator type clip for a jubilee clip.

User avatar
citroenguy
Posts: 46
Joined: 21 Sep 2017, 18:05
x 11

Re: Anyone tell me what this live data means please

Post by citroenguy »

Hmm..
What make is this new turbo/where did you buy it?
Just thinking if the new turbo is fubar.

Benscab123
Posts: 159
Joined: 09 Jul 2019, 20:33
x 3

Re: Anyone tell me what this live data means please

Post by Benscab123 »

It’s a copy off eBay