Fuel consumption issue

[Roh]

Hi all,

Have a fuel consumption issue with a 1995 VS Commodore which is a bit worrying. Full 60 litre tank will get only about 270-280km city driving only. Car is serviced regularly so don't think it is a servicing problem. What should this car be getting from a full tank? Any ideas of what may be causing this high fuel consumption? Anyone else had this problem?

 

[Raging Bull]

Replace both of the O2 Sensors that are connected to the exhausts headers, that will most likely solve the problem but if I were you I'd replace the air and fuel filters and spark plugs.

 

[HDT_aero]

Replace both of the O2 Sensors that are connected to the exhausts headers, that will most likely solve the problem but if I were you I'd replace the air and fuel filters and spark plugs.

exactly

if you still dont have the best economy replace the coolant temp and air temp sensors

all the sensors mentioned play a role in the computers fuel calculations so when one is not reading right the computer tries to correct it but it will still read wrong dumping fuel into the motor like no tomorrow

i dont have a vs but my vn gets 600k's around town driving easy

 

[Tradewind]

Raging bull has it very right