error code p0069

i have an error code p0069 which i think is map sensor/baro sensor.can anyone tell me the part i need to cure this problem and possibly a diagram as to where it is located.my c3 is 2007 1.4 hdi.
i have no loss of power .juddering or anything else.[Just Anti pollution fault on dash].. vin number VF7FC8HZC28960460 . Any help is appreciated, thanks

mattdehat wrote: ↑Sat Mar 02, 2019 11:27 am i have an error code p0069 which i think is map sensor/baro sensor.can anyone tell me the part i need to cure this problem

Hi mattdehat, no. It is not possible to tell you what part to change from that error code. That is not how error codes work.

The MAP sensor is found on some of the diesel engines fitted to the C3 and you will find it on the air inlet ducting.

This is what is looks like on a 1.4 HDi 16v but the same part is used on different engines.
The map sensor monitors intake pressure and a map fault indicates the ECU has found an unexpected reading and this could be due to a number of reasons additional to a faulty sensor.

hi c3car,many thanks for the reply.i will try the cheapest option of adding some dpf fluid in the tank 1st then explore other options if needed many thanks yet again for your time in giving me help....

mattdehat wrote: ↑Sat Mar 02, 2019 9:36 pm hi c3car,many thanks for the reply.i will try the cheapest option of adding some dpf fluid in the tank 1st then explore other options if needed many thanks yet again for your time in giving me help....

If you have a 1.4 with no DPF or FAP then any dog cleaner you add to the tank will have no effect because there is nothing for it to act on.

The DPF is an exhaust system part and will give different errors and not an inlet error that you have.

I don't think DPF cleaner will help you here

oh christ now im at a total loss as the way forward.could it be a sensor on manifold or something?i do not mind trying anything just need to sort it.can you maybe suggest best way forward.thank you again
its a 2007 1.4 DIESEL
reg PJO7UES
vin number VF7FC8HZC28960460
also i do not know if i have DPF or FAP .
this may help but unsure

mattdehat wrote: ↑Sat Mar 02, 2019 11:27 am . vin number VF7FC8HZC28960460 . Any help is appreciated, thanks

No DPF in that VIN.

You code is not a DPF fault.

mattdehat wrote: ↑Sun Mar 03, 2019 11:13 am oh christ now im at a total loss as the way forward.could it be a sensor on manifold or something?i do not mind trying anything just need to sort it.can you maybe suggest best way forward.thank you again

The way forward would be to

Connect the car to Lexia tool (info here) to get the correct description for this code and any solutions that lexia suggests. Generic code readers can be wrong with the Diesel C3 engines.

and/or

check the inlet system- air filter, intake pipes etc.

Identify if you have a MAF fitted - as shown in the photo.

Check the wiring to the MAF, check the connections on the plug/socket of the MAF.

Check back to the engine ECU there are 3 main plugs and these can give poor connection.

Check the loom for damage - not as easy as it sounds, you will need a wiring diagram to trace the MAF wiring back.

Try a working sensor in there, try your sensor in another C3 to see if the problem moves with the sensor.

Try resetting the code.

Citroen-Driver wrote: ↑Sun Mar 03, 2019 4:25 pm Identify if you have a MAF fitted - as shown in the photo.

(quote myself )

According to my diagram, yes, you should have one. So check this looks ok, there is an associated pipe for the MAF sensor, so check this is ok and not dislodged or damaged.

The Barometric sensor is usually inside the engine ECU and not a replaceable part (other than replacing the whole ECU).

Lexia can do a live data on the MAF sensor and Barometric sensor to see which one is giving a out of band reading.

i will look into all these maybes asap MANY THANKS.

Update....after filling up with premium diesel and giving the car a 200 mile round trip the anti pollution error has gone,i am thinking that this problem was due to the car doing super short journeys and not giving the car enough time to regenerate its gases ect.i may be wrong but fingers crossed all is good again.id like to thank everyone who helped me .CHEERS guys.awesome forum.......