C5 X7 Engine Management light

[10051550]

Hi Guys.

I have a 2011 C5 X7 2.0 HDi with the engine management light on

A quick check with my USB code reader reveals P2084

Could this be a sensor - any one else had this issue ?

I had given it a run down the Motorway in the hope that it might clear - but no luck

[GiveMeABreak]

If you have the DW10CTED4 engine, it will have the Delphi Injection system. That code is detailed below:

Fault Code	P2084
After sales description of the fault code	Particulate filter upstream gas temperature sensor: Voltage variation outside the tolerance
Description of the diagnostics	Electrical fault in the particle filter upstream temperature sensor Variation in the temperature of more than 100 °C per second
Conditions of activation of the diagnostics	Engine running
Conditions of disappearance of the fault	Driving with the engine hot for 5 minutes
Down-grade modes if fault present	Deactivation of the request for regeneration of the particle filter from the diagnostic tool
Switching on of the warning lamp and/or warning message	Warning lamp MIL
Main customer complaints likely	No effects immediately perceptible to the customer
Suspect areas	Particulate filter upstream gas temperature sensor Connector Electrical harness

So on the basis of this code alone, it would seem your gas temp sensor is either faulty, or the electrical connections are. I will need your VIN to confirm this, as there's only so far the crystal ball can see.

If it is the sensor that is faulty, here is all the info you need (pending VIN for confirmation)

Item 2 on the Diagram Part No: 1618KP Price £127.14 inc. VAT from Citroen

[10051550]

Thanks Marc

VF7**************[VIN obfuscated, can be read by forum staff] is this the correct part

[10051550]

Hmm can’t seem to post vin sorry , will check with dealer thanks again

[Paul-R]

Don't worry about your vin post. The forum software "knows" a vin has been posted and obscures it so that it is hidden from general view. The Mods and Admins can see it though.

[GiveMeABreak]

Thanks for answering that one Paul I was tied up with XM sphere specs on another query!

[GiveMeABreak]

Hmm can’t seem to post vin sorry , will check with dealer thanks again

Yes correct parts as per my diagram - confirmed with your VIN.

[10051550]

Great thanks

[ozzdownunder]

Hi, I own a Citroen C5X7 MY11 HDI Vin VF7**************[VIN obfuscated, can be read by forum staff] - Also the ENGINE MANAGEMENT warning light is constantly on. Have disconnected the batt for a hour and when restarting it still comes on. It all sounds ok, nothing that I can hear or see is wrong. What could the problem be ?

[GiveMeABreak]

You will need to get it diagnosed with Diagbox. There are any number of engine control system, emissions, or air & fuel faults that can bring this light on. There will be one or more fault codes active, so we need this to be able to help.