PSA 1,6 hdi EGR PROBLEM p0490 p1459

[bobbik]

DTC's as above, i replaced EGR (NOT OE)- same faults. Wires from egr plug up to ECU chcecked with multimeter. Pins in egr plug are ok.
Strange, but, sometimes i can erase DTC's, and car runs few kilometers without any warning lights on the dash. The worst part is, that "check engine" light not comes on, when fault ocurred, but ESP and electric parking brake light....
Car is C4 picasso, so ECU is hidden under the hood, in nice dry place, so i do not suspect water damage...

[vasso]

I had the same issues and the problem was the bsi.

[bobbik]

Could you explain?

[ChouLu]

@bobbik did you solve the problem?I have the same problem and I can't find a solution ...