C5 MPG

[kris h]

hi all not been on for a while forgot my password does anyone know where the map sensor is on a 110 diesel is cant seem to find it on mine only reason is iam getting very poor gas mileage 28 to 31 mpg car drives ok and no smoke checked tyre pressures and for brakes binding but all ok has done fair few miles 138000 has had regular service once a year by myself filters oil and anything else she needs used to get 38 mpg plus but since christmas seems to have dropped and engine seems more rattley at the top end had a new crank pulley last august that gave up after a hard week in cornwall to many steep hills i think thanks for any help in advance guys cheers

[Citroenmad]

You will find the MAF sensor just at the otherside of the airbox on the air intake pipework, its very easy to remove with just two screw and the removal of the pipe. It can give low MPG if it is dirty or if it its failing/failed.

Have you noticed a drop in performance, as I would expect it slightly if the MAF has gone.