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Old 09-26-2012, 05:58 PM   #1
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Join Date: Aug 2012
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Location: richmond, VA
What I Drive: 2003 dark grey ZX5

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Help! 2003 Ford Focus ZX5 - O2 sensor

ok I have a 2003 ford focus zx5 2.0l dual overcam.....heres my problem.

got the sensor 1 bank 1 error, so we replaced both O2 sensors, the upstream and downstream.

my car still idles funny and rough and the check engine light is on.

any ideas/suggestions of what we can try next before i am forced to take it into the dealership.

thank you for all the help and advise in advance

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