2004 KIA SEDONA
167,000 MILES
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MJIDO
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Hi for all the Team,

i just bought this car from a dealer, i have a big problem with consummation, each time the gaz led in the dash light up, i put 38 liters of gas,
right away i put trip A on 0 ,the car runs till 149 Km and the Gaz led in dash lights up, i did it 4 times , the last time i put 32 litres and it runs for 109 km , and liths up , i found that is too much high please any help,

thanks in advance,
Dec 15, 2012 at 2:06 AM
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ASEMASTER6371
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check that all services are up to date from the dealer you purchased it from/

fuel mileage is primarily based in driving habits. make sure you are treating the car well.

have system scanned for any codes.

Roy
Dec 15, 2012 at 4:18 AM
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MJIDO
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HI,

yes i just make a scan it scaned P0421, , i change the air filter, change engine oil, transmission oil,

i didn t change spark plugs and wiring, and i m hearing like a small noise, leak from exaust underneath the vehicul. especialy when i stated it on the morning.

thank you.
Dec 20, 2012 at 3:52 AM
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MJIDO
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i m still waiting no expert knows what s wrong ?
Jan 21, 2013 at 2:52 AM
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ASEMASTER6371
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421 is a bad cat converter. the exhaust leak will cause issues especially if it is before an o2 sensor. have that leak fixed and see what happens


Roy
Jan 21, 2013 at 3:25 AM