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okay how to fix coe 43

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    #1

    okay how to fix coe 43

    okay my car pops a code 43 how do i fix fuel system deliver code
    could it just be a bad fuel filter or can other things make this pop up
    Tags: None
    #2
    The most common culprit for code 43 is the oxygen sensor. Replace it with NGK/NTK or Denso ONLY. Do not use a Bosch sensor.

    If the o2 sensor does not fix the problem, then look deeper... but that's normally the cause.

    However, replacing your fuel filter wouldn't hurt. Mine is still original, I'm sure yours is too.






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      #3
      i would change it ..line wrench needed..the codes will tell you a lot...the o2 goes bad also..and i look at the connections at all the plugs too... for bad contacts [ white stuff]
      Last edited by Teddy; 07-07-2010, 11:59 PM.

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        #4
        i should bump my FYI thread again.
        I <3 G60.

        0.5mm Oversized Stainless valves and bronze guides available. Pm me please.

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          #5
          okay also i whent and got a cluster from some one and as i was about home o got off at my exit and i heard a noise that sounded like a pshhhhh like pressure had built up and i checked my oil and it was low

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            #6
            Originally posted by deevergote View Post
            The most common culprit for code 43 is the oxygen sensor. Replace it with NGK/NTK or Denso ONLY. Do not use a Bosch sensor.

            If the o2 sensor does not fix the problem, then look deeper... but that's normally the cause.

            However, replacing your fuel filter wouldn't hurt. Mine is still original, I'm sure yours is too.
            wat order sould i go in if the o2 sensor does not fix it ???
            and thanks for the info
            now am not spining my head i have some were to start witch is always best

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              #7
              Originally posted by deevergote View Post
              The most common culprit for code 43 is the oxygen sensor. Replace it with NGK/NTK or Denso ONLY. Do not use a Bosch sensor.

              If the o2 sensor does not fix the problem, then look deeper... but that's normally the cause.

              However, replacing your fuel filter wouldn't hurt. Mine is still original, I'm sure yours is too.
              why shouldn't i use the Bosch brand

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                #8
                Originally posted by blazedealh91 View Post
                why shouldn't i use the Bosch brand
                They work like crap is why, if they work at all. You should be able to find a Denso for relativily cheap. Got mine for $45 from a place called Bap Geon. When my o2 sensor went out, it caused all sorts of drivability issues, and it took like 3 hours of driving to finally get it to throw me a code, it gave me o2 heater code, and a 43 fuel supply system. An easy way to check if its your o2 sensor causing problems is to just unplug it (yes it will cause the cel to come on, but drivability problems should go away)
                Last edited by cloudasc; 07-11-2010, 04:54 PM.
                PT3/6 Development Thread | My 1991 LX Coupe | DIY: 90-93 Tcu Fix

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                  #9
                  Originally posted by cloudasc View Post
                  They work like crap is why, if they work at all. You should be able to find a Denso for relativily cheap. Got mine for $45 from a place called Bap Geon. When my o2 sensor went out, it caused all sorts of drivability issues, and it took like 3 hours of driving to finally get it to throw me a code, it gave me o2 heater code, and a 43 fuel supply system. An easy way to check if its your o2 sensor causing problems is to just unplug it (yes it will cause the cel to come on, but drivability problems should go away)

                  well when i last had my car on a lift it looked like it had ben connected with some type of wire connector(butt connector) not a plug if u get wat i mean
                  could they have done it wrong

                  http://www.autozone.com/autozone/acc...er=325948_0_0_

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