Averaging Poor MPG.

[ESmithers]

Hey all.

I have a 2005 1.2 Dynamique and I am averaging 26 MPG wherever I go. I will get 100 Miles out of £20 worth of fuel, I recently had it serviced and I do not drive like a boy racer. What is causing this and what can I do to solve this?

Any solutions would help me ALOT Thanks

 

[172Ben]

1) have you searched

2) have you reset the trip computer?

 

[ESmithers]

Yeah reset it and it went up but after 5 miles it dropped again

 

[Beasley Clio182]

Yeah reset it and it went up but after 5 miles it dropped again

any warming lamps ? Need to be plugged in on live data, could be lambda sensors , could coolant temp sensors etc