Help problem with Citroen Xsara Picasso1.6 hdi after changed the ecu by other

[soplillo]

Hi mates I have a problem, car is a citroen xsara picasso 1.6 hdi 9HY engine and the original ecu is damaged (burned). The original ref. is 0281011233 its a edc16c3 ecu.

Whe haven't founded the original ecu becouse there are few ecus like this, and we have mounted a ecu from other citroen xsara picasso same engine 1.6 hdi ref.0281011802 it's edc16c34 and try to another ecu by a citroen C4 ref.0281011629.

We tried with this two ecus but is the same result, the main and unique problem is that the car start bad and difficult only 2 seconds and engine cut off becouse has got an excessive rail pressure on ramp.

The engine fault code is P1166.Excessive rail pressure. (1800bar at start)

I saw in forum 2 posts by this mates that they solved the problem changing the software of the ecu but they didn't say how to resolved and wich software have writed.

I know that the rail pressure regulator it's different between same engines but i don't know wich it's the regulator for the software of new ecu.
I try to sent MP to them but I can't communicate.

Any help would be apreciated.

Thanks a lot and regards

[synkrotronic]

Hi
Did you try to disconnect sensor and read the values,confirm connections first.Ecu burned could damage sensors.
Regards

[fruti]

Hey mate. I suggest to change ecu with same numbers. Here is one on ebay: 2004 CITROEN PICASSO DESIRE 1.6 HDI ECU BSI KEY IGNITION BARREL KIT REF AE750 | eBay (http://www.ebay.co.uk/itm/2004-CITROEN-PICASSO-DESIRE-1-6-HDI-ECU-BSI-KEY-IGNITION-BARREL-KIT-REF-AE750-/161160609175?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item2585ebbd97)

[flixuno]

hi!
1? leftover check the injectors and pump
possible obstruction
2? checks on feed pressure sensor
output voltage sensor in boot phase is 1 volt
sorry for my English

[vey81]

Hi all,
I have problem with ecu EDC16C34,

Citroen Xsara Picasso 1.6 hdi, 9HZ, '05
ECU 0 281 011 392
HW 96 539 589 80
SW 96 561 622 80

after reprog with Lexia on SW vers. 96 622 22 380, engine start but run only a few sec. and then cut off. Have dtc "p1166 - high rail pressure" , after reflash on orig SW by BDM, ECU doesn't communicate:blue:. Does anyone functional SW for this ECU with this problem?

Thank you for your help

[vey81]

Solved

THX

[maucontacto]

Solved

THX

I got a 407 with original EDC16C3 doing the same with an used EDC16C34. I know that exists a conversion software to this situation. I think there are 2 different rail regulators, 1 normal closed and the other normal open.

How do you solve your case??

BR

[ominimicu]

Flash a file from a edc16C3 ecu

[maucontacto]

Flash a file from a edc16C3 ecu


???

What you say?

[betrescudan]

???

What you say?
post your dump

[maucontacto]

Tks for your help but the client wants the car and i won?t do the job :(

BR

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