MAP sensor C3 1.4i 2004

Questions specifically about a Petrol powered Citroen C3 (usually engine or fuel related problems).
Forum rules
One question per topic.
Petrol engine related faults, like injectors, error codes, overheating.
You can post more topics if necessary, but only one question per topic.
My Name: Painterman

Posts: 1
Joined: Fri Jul 29, 2011 12:05 pm


Hi all,

I understand that the MAP sensor has the IAT sensor built in. I have a fault code for the IAT, Could anyone advise which wires are for the IAT sensor ??

The colours are: Brown, light purple, White, Blue.

I'm new to forums, so please excuse for not introducing myself, is there a place to do so ?

thanks in advance.

User avatar
My Name: Arfur Dent

Posts: 3520
Joined: Sat Jul 23, 2011 3:47 pm
Model: C3 2002-2005, Original shape model
Year: 2002 (52)
Engine Size: 1.4 (16v)
Fuel Type: Diesel
Mileage: 100000
Trim Level: Exclusive
Gearbox: Manual 5 speed
Engine name: DV4 16-valve diesel (90 PS)
Has thanked: 345 times
Been thanked: 135 times


Hi Painterman,

No need for introductions.

Unfortunately I don't know the wiring for the MAP/IAT (Manifold Absolute Pressure)/(Intake Air Temperature) sensors. But;

The units are an easy removal and refit and cost only about £20.

My thoughts are, even if you did know the wiring, will you be able to interpret the data from the MAT to the ECU? to diagnose a response.

Swapping the MAT out for a known working one can save a lot of time in faulting the MAT itself.

But, as always, check the obvious stuff first, like the air filter.

Sorry I didn't answer your question directly (or even at all!)

You can add an avatar to your account - Avatar or change your vehicle details - Car Bio or even add a signature to your posts - Signature. But this is not all you can do in the User Control Panel :)
  • Similar Topics
    Last post