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code 45 on civic

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    #1

    code 45 on civic

    A couple of weeks ago i was lowering my 00 civic SI, finiched the job and when i turn the car on to go test drive it, the car almost died at iddle. When the car is running it runs perfect the problem is when it come to a stop it wants to die, it doesn't but almost, after striggling for a bit it iddles ok (900rpm). The check engine light came on about 3 days after. The code reads 45 SYSTEM TOO RICH OR TOO LEAN. I already checked the spark plugs (platinum +4 bosh)and they look ok, I relace my MAP sensor for a new one and nothing, please help any suggestions are welcome. also is it possible for a o2 sensor to fail from one day to the other????
    [SIZE=4] IMPACT
    [IMG]http://www.imagestation.com/picture]
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    #2
    o2 sensor maybe. Are the bosch factory recommended? Some hondas dont run too well with those.

    The New-ish Ride
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    MK3 Member #3
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      #3
      Swap those bosch for NGK's, Bosch are crap plugs meant for trucks. I would NEVER use them in cars. NGK's also produce more heat, which is neccessary in honda's and toyota's. replace your O2 sensor, and check the EGR valve.
      90 Accord EX F22a1 Auto R.I.P.
      2011 Mazda 3 Hatch 2.5L GS sport HELLO!

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        #4
        02

        is it possible that the o2 sensor fail right away?
        [SIZE=4] IMPACT
        [IMG]http://www.imagestation.com/picture]

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          #5
          The o2 sensor could be faulty, or there could be something fouling it. That, or the connection may not be right.

          Any reason why this belongs in Beginner Off Topic instead of the Other Automotive section? I mean, you have 84 posts... you CAN post in the proper section.






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