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Code 43 on B20 swap

Discussion in 'HYBRID -> ED-EF / DA' started by George777, Apr 13, 2008.

  1. George777

    George777 ^^ Likes Bewbies

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    I couldn't find any other posts on a CEL Code 43, unless I wasn't looking in the right spot.

    I keep getting a CEL once the car is warmed up--Code 43. I have a B20 in my EF. Fuel pump was replaced with swap (LS or CRV pump I believe). Weird thing is, once the CEL comes on, the car seems to run BETTER... More often than not, if I am not getting on it, it will pop the CEL. Hard acceleration seems to keep it off for the most part.

    Should I be worried about this? Time for a new pump? Honda won't look at it and nobody else seems to know. Everyone seems to say, "Just replace the pump." If that is the case, which pump to go with becomes the question. I would replace it with the Walbro 255, but if it's nothing that drastic, then I would prefer not to. Taking the tank down to change it the first time was enough of a pain...

    Thanks in advance.
     
  2. jdmep3

    jdmep3 JDM Matt

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    Advance auto has a book that tells what engine codes are.
     
  3. 1_jdmcrx

    1_jdmcrx New Member

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    26
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    1
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98 86-98 97-98 85-91 93-97 95-98 85-98 Oxygen Sensor "A" (Primary)
    defective circuit or unplugged / defective sensor
    2
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-89 86-87 n/a 85-87 85-91 n/a n/a Oxygen Sensor "B"
    defective circuit or unplugged / defective sensor
    3
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98 86-98 97-98 85-91 93-97 95-98 85-98 MAP Sensor (Manifold Absolute Pressure)
    defective circuit or unplugged / defective sensor
    4
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    90-98 88-98 97-98 88-91 93-97 95-98 85-98 CKP Sensor (Crankshaft Position Sensor)
    defective circuit or unplugged / defective sensor
    5
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98 * 86-98 97-98 85-91 93-97 96-98 85-98 MAP Sensor (Manifold Absolute Pressure)
    mechanical problem / disconnected piping
    * exc 94-95
    6
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98 86-98 97-98 85-91 93-97 95-98 85-98 ECT Sensor (Engine Coolant Temperature)
    defective circuit or unplugged / defective sensor
    7
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98 86-98 97-98 85-91 93-97 95-98 85-98 TP Sensor (Throttle Position)
    defective circuit or unplugged / defective sensor
    8
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98 86-98 97-98 85-91 93-97 95-98 85-98 TDC Sensor (Top Dead Center)
    defective circuit or unplugged / defective sensor
    9*
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98** 86-98 97-98 85-91 93-97 95-98 85-98 CYP Sensor (Cylinder)
    defective circuit or unplugged / defective sensor
    * not a valid code for any throttle body injection Hondas
    ** not a valid code for V-6 engines
    10
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98 86-98 97-98 85-91 93-97 95-98 85-98 IAT Sensor (Intake Air Temperature)
    defective circuit or unplugged / defective sensor
    12
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98 86-98 * n/a 85-91 * n/a 95-98 85-98 EGR Lift Sensor (Exhaust Gas Recirculation)
    defective circuit or unplugged / defective sensor
    * not a valid code if car is not equipped with an EGR valve (some Civic models are not)
    13
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    85-98 86-98 97-98 85-91 93-97 95-98 85-98 BARO Sensor (Atmospheric Pressure)
    defective circuit or unplugged / defective sensor
    14
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    88-98 88-98 97-98 88-91 93-97 95-98 88-98 IAC Valve (Idle Air Control)
    defective circuit or unplugged / defective sensor
    15
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    90-95 88-95 n/a 88-91 93-95 95 88-95 Ignition Output Signal
    missing or defective ignition output signal
    16
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    90-95 88-95 n/a 88-91 93-95 95 88-95 Fuel Injector System
    defective circuit or unplugged / defective fuel injector
    17
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    88-98 88-98 97-98 88-91 93-97 95-97 88-98 VSS (Vehicle Speed Sensor)
    defective circuit or unplugged / defective sensor
    19
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    n/a 88-95 n/a 88-91 93-97 n/a n/a Automatic Transmission Lock Up Control Solenoid Valve
    defective circuit or unplugged / defective solenoid valve
    20
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    90-98 88-98 97-98 88-91 93-97 95-98 92-98 Electrical Load Detector
    defective circuit or unplugged / defective sensor
    21*
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    94-98 ** 92-95 n/a n/a 93-95 n/a 93-95 VTEC Solenoid Valve
    defective circuit or unplugged / defective solenoid valve
    * not a valid code if car does not have a VTEC engine
    ** not with V-6 engine
    22*
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    94-98 92-98 n/a n/a 93-97 98 93-98` VTEC Oil Pressure Switch
    defective circuit or unplugged / defective oil pressure switch
    * not a valid code if car does not have a VTEC engine
    23
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    98 * 96-98 n/a n/a 94-97 n/a 92-98 KS (Knock Sensor)
    defective circuit or unplugged / defective sensor
    * not a valid code if V-6 engine
    30
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    90-98 * n/a n/a n/a n/a 95 92-98 * Automatic Transmission Signal: "A" / SEAF / SEFA / TMA or TMB
    defective circuit or unplugged / defective sensor
    * not a valid code for 1996
    31
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    90-95 n/a n/a n/a n/a 95 92-95 Automatic Transmission Signal "B"
    defective circuit or unplugged / defective sensor
    41
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    90-98 92-98 97-98 n/a 93-97 95-98 90-98 Primary Oxygen Sensor - Heater
    circuit malfunction
    43
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    90-95 92-95 n/a n/a 93-95 95 90-95 Fuel Supply System
    defective or malfunctioning fuel supply system
    45
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-98 96-98 System Too Lean or Too Rich
    malfunction in the fuel monitoring systems
    48
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    98 92-98 n/a n/a n/a n/a n/a LAF Sensor (Lean Air Fuel)
    defective circuit or unplugged / defective sensor
    54
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96 96-98 97-98 n/a 96-97 n/a n/a CKF Sensor (Crankshaft Speed Fluctuation)
    defective circuit or unplugged / defective sensor
    58
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    98 * n/a n/a n/a n/a n/a n/a TDC Sensor 2 (Top Dead Center)
    defective circuit or unplugged / defective sensor
    * with V-6 engine only
    61
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-98 96-98 Oxygen Sensor, Heated - Sensor 1 (Primary)
    high voltage, low voltage, or slow response
    63
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-98 96-98 Oxygen Sensor, Heated - Sensor 2 (Secondary)
    high voltage, low voltage, or slow response
    65
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-98 96-98 Oxygen Sensor Heater (Secondary)
    malfunctioning or defective oxygen sensor heater
    67
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-98 96-98 Catalyst system Efficiency Below Threshold
    malfunctioning or defective catalyst system
    70
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a n/a 96-98 96-98 Automatic Transmission
    malfunction with the automatic transmission controls
    71
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-98 96-98 Cylinder 1 Misfire or a Random Misfire
    a condition is present that is creating a cylinder misfire
    72
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-98 96-98 Cylinder 2 Misfire or a Random Misfire
    a condition is present that is creating a cylinder misfire
    73
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-98 96-98 Cylinder 3 Misfire or a Random Misfire
    a condition is present that is creating a cylinder misfire
    74
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-98 96-98 Cylinder 4 Misfire or a Random Misfire
    a condition is present that is creating a cylinder misfire
    75
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    98 * n/a n/a n/a n/a n/a n/a Cylinder 5 Misfire or a Random Misfire
    a condition is present that is creating a cylinder misfire
    * valid code for V-6 engine only
    76
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    98 * n/a n/a n/a n/a n/a n/a Cylinder 6 Misfire or a Random Misfire
    a condition is present that is creating a cylinder misfire
    * valid code for V-6 engine only
    80
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 n/a n/a n/a 96-98 96-98 Exhaust Gas Recirculation
    insufficient flow detected
    86
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-98 96-98 ECT Sensor (Engine Coolant Temperature)
    circuit range / performance problem
    90
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    97-98 96-98 n/a n/a n/a 98 97-98 Evaporative Emission Control System
    leak detected in the fuel tank area
    91
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 n/a n/a n/a 98 97-98 Fuel Tank Pressure Sensor
    low input
    92
    Accord Civic CRV CRX Del Sol Odyssey Prelude
    96-98 96-98 97-98 n/a 96-97 96-97 96-98 Evaporative Emission Control System
     
  4. George777

    George777 ^^ Likes Bewbies

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    I already knew what the engine code was by referring to the reference section. My question wasn't what the code was, it was what should my next action be based on the code I was throwing.

    I do know how to reference material.
     
  5. 1_jdmcrx

    1_jdmcrx New Member

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    Code 43 is generally the Oxy sensor being lazy or dead.It's easiest to just replace it than to try and test it. When it dies, the ECU goes into default If you test it, follow the Shop manual and make sure that you use a DIGITAL MULTIMETER ONLY> Analogue ones kill sensors real quick.( I use a Fluke 23)
     
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