Does anyone know what could be causing my Mondeo to be a bit sluggish and use quite a bit of petrol? I've not seen over 30mpg no matter how carefull I drive. My sister has the same model ( MK2 LX 1.8) and has had over 40 on a long run! Plus it is quicker than mine and mine has been looked after considerably better

 

Defective sensor or some air leak in inlet- or exhaust-manifold.
Check exhaust manifold and gaskets, check inlet manifold and gaskets and vacuum lines.
If all is well have the dealer check the sensors.

 

Thanks....Will check for air leaks in morning

 

blocked cat or some dodgy plugs/leads

 

how does it run/drive?
any hesitation, splutters misfires under load etc?
they're bad for coil packs/leads/plugs
cats can break up and got blocked
coolant temp sensor?

 

id say cat,