Hi,
If anyone on here has the same car as me, could they please tell me what colour connectors go where by the EGR valve as I think mine are on wrongly. Lexia shows the EGR valve is open-circuit and the plug connected to it only has one wire in it.
The one nearby going to the alternator has two wires going to it, and there's another grey plug further down going to a sensor of some sort which also has two wires.
The pics in the H@ynes manual are black and white so no help, and the citroen service website doesn't help either.
Thanks!
(my car is a 2002 model if that makes a difference)
1.4 8V HDi what colour connectors go where by the EGR valve
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Diesel engine related problems
Think: Diesel engine, diesel fuel system, diesel injectors and glow plugs
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- Posts: 3520
- Joined: Sat Jul 23, 2011 3:47 pm
- Model: C3 2002-2005, Original shape model
- Year: 2002 (52)
- Engine Size: 1.4 (16v)
- Fuel Type: Diesel
- Mileage: 100000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: DV4 16-valve diesel (90 PS)
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Haynes shows the wire colours as a code. What doesn't help is that I can't see the EGR in the wiring diagramsChapster wrote:The pics in the H@ynes manual are black and white so no help, and the citroen service website doesn't help either.

I don't have the same engine, but I would expect 2 wires. One 12v supply and a wire that terminates at one of the engine ecu multiplugs.
Citroens wiring diagrams don't have wire colours, they have wire numbers (you can see the numbers printed on the cable insulation)
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- Posts: 3520
- Joined: Sat Jul 23, 2011 3:47 pm
- Model: C3 2002-2005, Original shape model
- Year: 2002 (52)
- Engine Size: 1.4 (16v)
- Fuel Type: Diesel
- Mileage: 100000
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Engine name: DV4 16-valve diesel (90 PS)
- Has thanked: 345 times
- Been thanked: 135 times
A extract of a wiring diagram for the Siemens SID802 ECU found in the 8v diesel C3 from around 2002.
The EGR is no 1253 and is supplied by wire numbers 1373 (ECU) and 7313B (12v from the BSM B3 engine fuse box)
I have marked 1373 in RED and 7313B in GREEN - but the actual wires are not those colours, but the numbering will be correct
7313C disappears off the top of the page, but ends up at the fuse box as 7313
as shown in the picture above. I didn't miss anything out for 7313
If you click the images - you should see a larger and hopefully more clear image.
The EGR is no 1253 and is supplied by wire numbers 1373 (ECU) and 7313B (12v from the BSM B3 engine fuse box)
I have marked 1373 in RED and 7313B in GREEN - but the actual wires are not those colours, but the numbering will be correct

7313C disappears off the top of the page, but ends up at the fuse box as 7313
as shown in the picture above. I didn't miss anything out for 7313
If you click the images - you should see a larger and hopefully more clear image.
You can add an avatar to your account - Avatar or change your vehicle details - Car Bio or even add a signature to your posts - Signature. But this is not all you can do in the User Control Panel 

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- Posts: 14
- Joined: Mon Mar 30, 2015 9:11 am
- Model: C3 2002-2005, Original shape model
- Year: 2002 (52)
- Engine Size: 1.4 (8v)
- Fuel Type: Diesel
- Mileage: 124300
- Gearbox: Manual 5 speed
- DPF: No
- LHD or RHD: RHD (UK)
- Been thanked: 1 time
Thanks for all the help. With it, I was able to ascertain that the alternator and egr solenoid plugs had been swapped. Indeed, it turned out haynes does actually state that only one wire is used for the alternator.
Odd that the battery light didn't come on considering the absence of either a voltage or a ground to this wire when it was plugged into the egr solenoid...
Odd that the battery light didn't come on considering the absence of either a voltage or a ground to this wire when it was plugged into the egr solenoid...
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