help!!!my honda city fuel consumption suddenly increased!

[lancer5790]

help! it's been a week, i observed my 97 honda city has increased fuel consumption from 9-10km/liter city driving to 6-7km/liter without anytyhing done with the engine and the entire car. what could be the culprit???

[puroy]

your feet! =)

[rollyms]

Maybe one of the spark plugs got fouled. When is your next maintenance due?

[ghosthunter]

help! it's been a week, i observed my 97 honda city has increased fuel consumption from 9-10km/liter city driving to 6-7km/liter without anytyhing done with the engine and the entire car. what could be the culprit???

Increase in traffic?

[ramledi]

maybe a clogged injector or dirty carburator

[RedAxel]

Spark plug, air filter, change oil, tune up

[lancer5790]

SIRS actually i just got this car last april 24. i replaced in two days within my possession all the plugs, air filter, timing belt, crank/cam shaft, velocity joints, radiator, accelerator and cable. everything went fine until last week. the fuel consumption went up...also to mention, i cleaned the throttle body, IAC is fine. im suspecting it could be the fast idle screw that's the culprit coz i found it closed tight and when i put it back after cleaning, i closed it tight as well. idling and running perfectly normal though...what do you think? by the way, i change gear (ease up the pedal,it's A/T) before reaching 2000rpm...