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2003 Mazda Tribute Question: Why does my vehicle idle rough after cold start but runs great when engine hot

 

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Belizean, Long Key, FL, December 07, 2012, 07:04
 Rookie

Every morning when the engine is cold and when the engine warms up for the day it runs great

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    Greg's Orange Auto (14224 Answers) , Orange, CA - (714) 361-9386
    globalhelper December 07, 2012, 07:14
     Master

    do you have a ck eng light on?

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    Belizean, December 07, 2012, 07:19
     Rookie

    Yes the check engine light was on but then i replaced all the oxygen sensors as one mechanic checked with the OB2 reader and now the lights are off but my vehicle still does the same when i start in the morning time until it get hot

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    globalhelper, December 07, 2012, 08:00
     Master

    what were the codes and fuel trim readings?

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