Picasso P0403 fault code

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bbb
Posts: 39
Joined: 23 Aug 2010, 18:20
Location: Midlands
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Picasso P0403 fault code

Post by bbb »

Hi all,
After a bit of advice on a P0403 fault code egr circuit fault.
The car is a 2001 xsara picasso with 6FZ 1.816v petrol engine. MIL came on and the car has logged faults from both lambda sensors and the egr fault. The egr is an electrically operated unit with a 5 pin plug and no vacuum lines.

Is there a way to test the pins in both the plug and egr to check for continuity? Or another way to ascertain the egr is faulty before replacement?

Thanks
bigtone0777
(Donor 2021)
Posts: 58
Joined: 13 Sep 2013, 17:32
Location: Newton Aycliffe
Lexia Available: Yes
My Cars: .
Current Car : 2007 C4 Picasso 1.6 HDi 5 Seat

Previously owned
Several Xsara Picasso diesels
Xsara 1.4 petrol
Pug 306 2.0 HDi
2x Xantia 1.9 Diesel, one NA one TD
Pug 309 1,9 Diesel
x 7

Re: Picasso P0403 fault code

Post by bigtone0777 »

I had a problem with mine on my 1.6 diesel and it turned out to be bad wiring about 2 inches up the harness from the plug. Definitely worth checking for chaffs or breaks as P0403 is a short or open circuit code so unlikely to be the ERG itself
2007 C4 Picasso 1.6 HDi 5 Seat with loads of gremlins!
picassodad
Posts: 251
Joined: 04 Oct 2018, 14:26
Location: mid wales
My Cars: pug306, citroen picasso
x 14

Re: Picasso P0403 fault code

Post by picassodad »

dont forget the earths......how did you get on as the lad has one of these, same year and engine.....
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