Thank you for the heads up about OBD2 compliant from 2004. I think i'm okay though because the tester I used is not one of the dirt cheap ones. It had Menu entry for "Citroen", "Xsara Picasso", and then "2.0 HDI" and all the other models. And then afterwards we tried testing from another menu item called OBD2. I can't remember the P0000 number though, but i can get it. Looking at all the fault codes listed here in the forum that are so specific, you would think that there would also be a equally specific solution to these errors, but I guess we are not that lucky. I know another mechanic who has a really proff code reader. Its a 14" touch screen computer, designed to work on all brands of cars and i think he even punches in the licensplatenumber to find the specific car model, so it must be connected to an updated database. Maybe this one will tell me what sparepart to change even. So you suggest either the fuel pressure sensor or the fuel pressure regulator (part of the pump) Are there 2 fuel pumps ? one in the tank and one by the engine ? are they both called "fuel pump" ?
