2000 VW Golg 2.0 GTI APK engine - excessive fuel consumption

[jimmylee]

Help.

I have the above car and my fuel consumption has gone through the roof !!

I am getting about 15 miles from £20 of fuel !!!

I have changed the following :
Air Mass Meter
Coolant temp sensor
Thermostat
spark plugs

The emmissions on CO2 ( supposed to be 0.3%) is reading 23.9%
the engine also idles erratically and smokes

[Screech16v]

Have you scanned it for fault codes or cleared old ones from changing parts?

[opel]

you sure you aint got a leak as that alot of fuel for 15 miles

[Chris#101]

Any fault codes? Lambda sensors?

[ReDBull]

My pre cat Lambda has died and the MPG has dropped by 5-10 mpg but that is a lot! If it's over furling that much you'll kill the cat and end up with bore wash! I'd get it looked at before you drive much further.

[Wayne]

Stop using it and get it checked asap, sounds like you have a leak.

[Wazzzer]

There is something seriously wrong to have a CO2 reading of 23.9%. As above you'll knacker the cat, plugs and the engine with that sort of fuel going through.

[Wayne]

Could be the ECU has blown and it is dumping fuel into the engine.