Failed emmission test due to fuel system too lean

KIA
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VENTURA
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:roll: I have a 2001 Kia Optima L4-2.4L. It failed the emmission test. The MVD employee indicated that piston #1 is running too lean. He couldn't give me any more information. What repairs can be done to fix this? :cry:
Mar 4, 2006 at 1:07 PM
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VANDRAGON
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i think i would get a second opinion. how can a car that burns too lean and not too rich fail?
Mar 20, 2006 at 2:23 PM
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FLYNNTH
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Sounds like a faulty or dirty injector. Might try having fuel injectors flushed. could also be the fuel filter or fuel pump.
Mar 20, 2006 at 5:39 PM
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CODY-ODY
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I agree with Vandragon and get a secong opinion,if your injectors were the problem you would also have a performance problem and probably some misfire codes.
You might be looking at a vaccum leak but I don't see how this "lean " condition could make you fail the test. Is it possible that the "tech" made a mistake and got mixed up and told you the oppite . Get a print out if you can of the test failure.
Jul 10, 2006 at 7:12 PM