Citroen C5 2009 EGR valve

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Sufii
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Re: Citroen C5 2009 EGR valve

Post by Sufii »

Thank you very much. I also need the connector, do you thin Citroen sell that sepratly?
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Re: Citroen C5 2009 EGR valve

Post by GiveMeABreak »

The connector on the end is the sensor (to the left on the picture above).

Here is the sensor on its own that Citroen do not sell:
sufi  3.PNG
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Marc
Sufii
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Re: Citroen C5 2009 EGR valve

Post by Sufii »

No, you misunderstood. I meant the connector , with the cables behind.
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GiveMeABreak
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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
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Re: Citroen C5 2009 EGR valve

Post by GiveMeABreak »

The connectors to the sensors will be part of the engine harness:

This is the main engine harness: 6569TQ is the part for the harness (1)
sufi 4.PNG
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Marc
Sufii
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Re: Citroen C5 2009 EGR valve

Post by Sufii »

Now I purchased used fuel pressure sensor. But unfortunately I cut the old one from the harness long time ago. This new one have different colours on the cables. How do I connect it right?
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GiveMeABreak
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Posts: 37005
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 5646

Re: Citroen C5 2009 EGR valve

Post by GiveMeABreak »

Hi Sufii.

Ok, so the colours are not important as PSA used anything going! What's important are the pin outs.
sufii pressure sensor.PNG
Wire pin outs:

Pin 1: 6774 (Line Pressure Signal) This goes to pin G3 in the engine ECU
Pin 2: 6773 (Line Pressure - Supply) This goes to pin C4 in the engine ECU
Pin 3: 6772 (Line Pressure + Supply) This goes to pin B4 in the engine ECU

The Engine ECU connection should be a brown 48 pin connector.
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Marc
Sufii
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Re: Citroen C5 2009 EGR valve

Post by Sufii »

Thanks for very good help. But I have to admit that my car is still standing still. Been a few months now. So I replaced the EGR valve and the fuell pressure sensor regarding to the chart diagram you posted. But the car still won't start. What can I do further?

Thanks for good help folks!
Sufii
Posts: 81
Joined: 12 Nov 2018, 23:01
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Re: Citroen C5 2009 EGR valve

Post by Sufii »

Anyone?
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GiveMeABreak
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Joined: 15 Sep 2015, 19:38
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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 5646

Re: Citroen C5 2009 EGR valve

Post by GiveMeABreak »

Are you using Diagbox as your diagnostic software and have you ran a complete global diagnostic if you are?

We never really knew what the original problem issue was, but have been just supplying the info that you have requested for various replacements that you've requested.
Are there any dash warnings, is the car turning over? is the immobiliser / Engine ECU unlocked?

If you can't start it, and in the absence of any fault codes, then you may need to get it to a specialist to work on. There's not a lot we can do remotely without any fault codes to go on realistically.
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Marc
Sufii
Posts: 81
Joined: 12 Nov 2018, 23:01
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My Cars: Citroen c5 2009
x 3

Re: Citroen C5 2009 EGR valve

Post by Sufii »

No, I don't have Diagbox diagnostic, but are using another manufacture. Its no special fault codes related to starting problems.
The main problem was that the EGR valve lost the covering metal on the bottom, and the heat coming out from the valve melted det fuel sensor og en fuel rail. So now I changed the sensor, and EGR valve.
But last time Ive tried to start the car, the EGR valve was not fitted yet. Can that be the problem? I haven't gotten time to fix it yet and retry.
Sufii
Posts: 81
Joined: 12 Nov 2018, 23:01
Location: Norway
My Cars: Citroen c5 2009
x 3

Re: Citroen C5 2009 EGR valve

Post by Sufii »

Ok, now I finally got the car started, but I am not still satisfied yet, the engine power is weak. What could it be? I have changed the EGR valve and the fuel pressure sensor, and im 100% sure that I made the right joints on the fuel pressure sensor cables.
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