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I have a citroen xsara picasso 2.0 diesel reg 51 plate?

engine auto-diagnosis lamp on primary circus EOBD code p0230
BRIAN, October 2011
That code refers to the Fuel pump relay circuit malfunction, possible causes:- Wiring, Fuel pump relay or ECU.

The relay module is next to the ECU under the bonnet

nigel, October 2011
link Click here to see other fixes for Citroen.