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code 63?

Discussion in 'Civic and CRX - EF' started by mustang67n, Mar 17, 2007.

  1. mustang67n

    mustang67n Senior Member

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    first, my car.. '89 civic hatch. SOHC ZC (d16a6) 5 spd.

    ok, im throwing code 63 and the car seems to be misfiring. code 63 is (i looked it up): o2 sensor heated

    i recently put an exhaust on my car.. a cheap E-bay 4-2-1 header and a Monza Pacesetter cat-back system.
    the Monza kit has a lot of backpressure, could this extra backpressure cause an increase in exhaust temp's to cause my 2 month old o2 sensor to get 'heated'?
    is there any way around this problem? (i.e.: a high-temp o2 sensor) i dont want to have to get rid of the exhaust, especially after the money I put into the kit.

    thanks in advance
     
  2. mustang67n

    mustang67n Senior Member

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    ok.. i might have been wrong about it being code 63... this is what code 63 says.. :

    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

    my car (and ECU) is an '89 civic.. and i only have a 1-wire O2 sensor which would mean its a non-heated O2 sensor.

    I was thinking the code meant the O2 sensor was heated, as in overheated or burnt.

    the light on the ECu flashes 6 times, then takes a VERY short break then flashes 3 times. that means 63 i believe.
    if not, then it means code 6 and code 3. or code 9

    code 6:
    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

    code 3:
    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 senso

    code 9:
    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

    GRR! idk.
    im sure its not code 6, the temp guage is reading out fine.
    that would also rule out code three, because code 6 & 3 would have to go together in order for the ECU code to make sense.
    Code 9 is saying its not a valid code for any TBI hondas.. my civic is FI, which means it uses a TB, wouldnt that make it throttle body injected?
     
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