MPG very low

2004 Vauxhall Vectra 2.2 SRI direct, petrol auto
Car: Vauxhall Vectra
Year: 2004
Variant: 2.2 SRI direct, petrol auto
Categories: Steering, Suspension, Brakes, Wheels & Tyres
Up until 6 weeks ago I was averging 44mpg, this was driving the car very carefully.
The MPG has now dropped to 32-34 MPG.

The brakes are not binding, the air filter is new, but the car still feels as though it is towing something heavy. When it is in drive and freewheeling down a hill, the instant MPG used to show 999.9, but now it's about 123.5 ish. It is as though something is braking, like it is in the wrong gear, but when I flick the stick over into semi-automatic, it is in the right gear. The car is now costing a fortune to rune, any ideas or suggestions?
Problem added: Jun 14, 2008 (15 years ago)
malhaycock

Points: 1
Possibly you lambda sensor, would not make anything bind or anything but would certainily make fel consumption low.

NOTE : sometimes fuel consumption computers are a pain too
Answered Jun 16, 2008 (15 years ago)
paultotten

Points: 44
Reply
engine management coolant temp sensor wants replacing as the when the sensor goes faulty and cant read the engine temp correctly it will use more fuel which is what is happenning here hope this helps
Answered Jun 17, 2008 (15 years ago)
thomkas_cars

Points: 1,056
Reply

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Lambda Sensor
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