Fuel average of Toyota Corolla Xli 2007

[hqureshi512]

I have a Toyota Corolla Xli 2007 which is giving fuel average of 6-7km/l on AC throughout the city. Fuel injectors are recently changed, oxygen intake sensor is also cleaned. What could be the possible reason for the disturbed fuel average?

It is also producing a fuel smell around the engine room while accelerating.

I'm in Karachi can anyone refer me to a solution or person for further checkup.

[aziz.rehan]

Is it giving check engine light?
Spark plugs and air filter condition?
Which injectors did u installed?Is rpm stable at idle?

[KamranAslam]

Disturbed fuel lines can be a cause of this, my mechanic is in Dha phase 2 behind exact building name Baber... visiting him can help.

[hqureshi512]

Only give check engine light before ignition is turned on then it disappears which I believe is a natural factor. Secondly, spark plugs and air filters both are recently changed, as for an RPM is considered I feel a minor bump on RPM whenever I move my foot away from the accelerator and press bump. Small jerks when accelerating on an empty road.

[aziz.rehan]

Jerks can be due to faulty ignition coils.Get them checked.It should atleast give 10km/l with ac.Also get maf checked