Sudden drop in fuel economy!

[Knight_Rider]

Here we go again..... noticed a very sudden (literally last few days) drop in my fuel economy - and to a certain degree my performance. Automatically first thoughts were with the exhaust, rear section is fine, cat and front are VERY rusty but dont appear to be blowing....so are we all in agreement that its prob the bleeding lamda sensor???
Think a trip over to Ryan at NW Performance may be in order - 20 quid of fuel yesterday literally only lasted me a 30 mile round trip!

TYhere is also a rather nasty rattle and a bit of instability in the handling of the car..... are we thinking my ball joints or suspension bushes....car feels to want to "step out" when turning.

Many thanks for the upcoming advice

 

[Da]

Fuel economy - upstream lambda sensor.

Handling - could be ball joints, but could equally be a leaky (rear) shock absorber.

 

[Knight_Rider]

Hmmm how much is that gonna set me back I wonder :-/

 

[NWPerformance]

Rear shocks and lambda sensors are going like mad now so there is a high chance its them.