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Check Engine Light On Code 43

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    Check Engine Light On Code 43

    I Read My Heynes Manual Book And It Does Not Tell Me Anything About A Code 43 Has Some One Runn Throught This Before Hit Me Up Please

    #2
    43
    Fuel Supply System
    Defective or malfunctioning Fuel Supply System
    Members Ride

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      #3
      code 43..........Fuel supply system......problem with 02 sensor circuit or fuel system. got that from Mitchell on Demand. you could be running lean (87 oct) use higher octane and see what happens. your number one problem is the o2 sensor is starting to die. i would go with higher octane first, see if the light comes back on, if it does change the o2 sensor. if it doesnt come on happy motoring. but i would still change the 02 sensor, dont forget to clear the code. pull the radio back up fuse in the engine bay. a red 7.5 amp

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        #4
        i was getting a 43, ran a can of seafoam through the intake and put a whole bottle of fuel system cleaner in the gas tank, and i never saw the code again


        - 1993 Accord LX - White sedan (sold)
        - 1993 Accord EX - White sedan (wrecked)
        - 1991 Accord EX - White sedan (sold)
        - 1990 Accord EX - Grey sedan (sold)
        - 1993 Accord EX - White sedan (sold)
        - 1992 Accord EX - White coupe (sold)
        - 1993 Accord EX - Grey coupe (stolen)
        - 1993 Accord SE - Gold coupe (sold)
        Current cars:
        - 2005 Subaru Legacy GT Wagon - Daily driver
        - 2004 Chevrolet Express AWD - Camper conversion

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          #5
          Originally posted by oneoffaccord
          you could be running lean (87 oct) use higher octane and see what happens.

          WHAT THE FUCK ?!?

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            #6
            iam thinking i do have a fuel supply problem because sometimes only sometimes iam on the accelerator and my car stummbles like it doesnt wanna go so i let go of the gas pedal and hit it again and its fine and iam going to start using hight octane fuel i usuallly purchage my fuel al chevron so ill see next week whats up thanx guy ill keep posting


            by the way where did u guys find the answer to the code because hayns does not say

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              #7
              are u using the code from the proper motor? i made that mistake, i have a lude motor but followed an accord code thing....
              welcome to the DOHC-side..muuuahahahahahah




              http://www.cb7tuner.com/vbb/showthread.php?t=1906

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                #8
                whens the last time you changed your fuel filter? stumble on acceleration is usually three things i can think of
                1)- clogged egr ports and valve
                2)- clogged or dirty fuel filter
                3)- car needs a tune-up i.e plugs, wires, cap, and rotor.

                other factors
                intake manifold leak..i.e gaskets or vaccum hose leak
                bad sensors like tps, or coolant temp sensor, or oxygen sensor
                throttle cable out of adjustment

                good luck x

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                  #9
                  Originally posted by f22-dohc
                  are u using the code from the proper motor? i made that mistake, i have a lude motor but followed an accord code thing....
                  i have a prelude motor and its the same thing

                  the only difference i would see in any motors are the egr/vtec codes. some hondas dont have egrs and as everyone knows, not all have vtec.

                  CrzyTuning now offering port services

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                    #10
                    for bajaccord

                    what do you mean custom fabbed? maybe your sending unit is bad or your fuel pump is going or screen is dirty. do you have upgraded injectors? maybe going around the tight corners is moving the gas away from the pick-up? please elaborate. maybe your main relay is going on the fritz?

                    goodluck x

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                      #11
                      hmmmmm
                      welcome to the DOHC-side..muuuahahahahahah




                      http://www.cb7tuner.com/vbb/showthread.php?t=1906

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                        #12
                        nice set-up bajaccord..what fitting did you use for the fuel pump adapter, and whered you get it. cuz i need to custom fab a fuel line.


                        just idea again..maybe since your runnnig turbo. you can try and run 8an line. maybe there a temoporary lag in fuel geting to the rail and the 6an line isnt enugh for the turbo. or remove the pulse dampener, or install it if you dont i dunno. just throwing ideas?


                        regards
                        Last edited by xfactortype1; 07-08-2006, 08:02 AM.

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                          #13
                          Originally posted by dynamic93
                          iam thinking i do have a fuel supply problem because sometimes only sometimes iam on the accelerator and my car stummbles like it doesnt wanna go so i let go of the gas pedal and hit it again and its fine and iam going to start using hight octane fuel i usuallly purchage my fuel al chevron so ill see next week whats up thanx guy ill keep posting


                          by the way where did u guys find the answer to the code because hayns does not say

                          sounds like a fuel pump to me



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