Question about 2003 Mitsubishi Lancer

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My service engine soon light is on on my 2004 Mitsubishi Lancer.

I took it to the auto parts store and they pulled two codes. 1 was the #1 spark plug was misfiring and the other was Emissions bank 1. I changed the spark plugs and the O2 sensor and the car was running alot better for about a day. Now the light is back on and is idling funny. Sometimes high and sometimes low.

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  • jplee79 Nov 30, 2008

    erratic idle up and down, wont rev over 4,000rpm

  • Anonymous Mar 25, 2014

    I replaced crank sensor and don't have spark in the first ignition coil but it sparks in second coil

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You can't guess with this vehicle take it to Auto-Zone they will check the code for free and get back to me. Good Luck

Posted on Dec 20, 2008

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Please vote for me, 4 thumbs for a free answer from FixYa.com :)

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