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[Corsa C] [00-06] Corsa C O2 Sensor/Throttle pedal troubles

Discussion in 'Astra, Corsa, Zafira, Meriva, Adam, Agila, Tigra & Nova [Includes AstraVan & ComboVan] owners forum' started by hilly1975, Nov 20, 2011.

  1. hilly1975

    hilly1975 New Member

    Messages:
    6
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    0
    Location:
    walsall,england
    Hi all,
    Corsa C Z10XE
    After getting some fault codes a while back i decided to change o2 sensor bank 2 after getting the
    following codes using op-com:
    P0136 O2 Sensor Circuit Open bank1 Sensor 2-not present
    P0141 O2 Sensor Heater Circuit open Bank 1 sensor 2-not present
    P0141 O2 Sensor Heater Circuit Malfuction B1S2-present
    P0141 O2 Sensor Heater Circuit Lowvoltage bank 1 sensor 2-not present
    P0120 Throttle/pedal position/switch"a" malfunction-present

    After changing bank2 sensor (exhaust).I started car and the accelarator was unrsponsive.
    Turned car off and back on Accelrator was working.
    I then decided to reset engine codes.

    Started car and within a few mins engine light came on.New codes that are showing are:

    P0141 O2 Sensor Heater Circuit open Bank 1 sensor 2-not present
    P0141 O2 Sensor Heater Circuit Malfuction B1S2-present
    P0141 O2 Sensor Heater Circuit Lowvoltage bank 1 sensor 2-present
    P0120 Throttle/pedal position/switch"b" malfunction-present
    P0220 Throttle/pedal position incorrect ratio-present

    I was wondering if anyone has any idea where to start has i'm a car noob.

    Could my problem lie with some kind of control unit like where the sensor plugs into ?

    Would this be linked together with the accelarator.

    Has you can see by changing the o2 sensor has got rid of p0136 but gave me a new throttle/pedal error.

    Any help on this situation would be warmly welcomed.
    Thanks in advance
    James
  2. ALLYQ

    ALLYQ Active Member

    Messages:
    258
    Likes Received:
    1
    Location:
    Dalry Ayrshire
    0141 is possible a wire damaged or corrosion or cheap sensor (Post Cat) pin out the wiring
    Set up op com engine off and go into measuring blocks and look at the readings for (I think) APP 1 & 2 and also the ratio
    one should rise 0-5V one should drop 5-0V and I believe the ratio adds up to 5 (it's been a while since i used op-com)
    report back whats happening when you press the pedal all the way down
    You could try recording some live data
  3. hilly1975

    hilly1975 New Member

    Messages:
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    Location:
    walsall,england
  4. hilly1975

    hilly1975 New Member

    Messages:
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    Location:
    walsall,england
    Could the problem be linked to MAF Sensor or fuel lines?

    Thanks
  5. hilly1975

    hilly1975 New Member

    Messages:
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    Location:
    walsall,england
    Update:Corsa has been standing for 2 weeks with minimal amount of fuel.
    Today i put 5 litres in reset my codes took it around the block.
    Now i get following codes:
    P0141 O2 Sensor Heater Circuit Malfuction B1S2-Intermittent
    P0141 O2 Sensor Heater Circuit Lowvoltage bank 1 sensor -Intermittent

    So most problems fixed so i'm guessing cheap Sensor is causing the Intermittent :(
  6. ALLYQ

    ALLYQ Active Member

    Messages:
    258
    Likes Received:
    1
    Location:
    Dalry Ayrshire
    Take it for a longer run 0141 is post cat sensor and is checking cat efficiency see if any further codes return
    As it has returned the same codes after new sensor fitted i would want to check out the wiring
    start wth cleaning the connector that the sensor plugs into.
    Are you handy with a multimeter
    Hope this helps.
  7. hilly1975

    hilly1975 New Member

    Messages:
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    Location:
    walsall,england
    Can't really go for a long drive no MOT or tax at the moment might be best if i wait till i take it for the MOT.
    And sort out this problem then or if it fails MOT.

    Has for multimeter i've used one before,where would i begin has where the post cat sensor is not the easiest place to get to?

    Thanks for the replies guys much appriecated.
  8. ALLYQ

    ALLYQ Active Member

    Messages:
    258
    Likes Received:
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    Location:
    Dalry Ayrshire
    Disconnect the sensor check pins 1 & 2 of the sensor should be around 9 ohms
    On the disconnected connector leading back to the ECU
    Check pin 1 to good earth should be 12V DC with Ignition On
    Ignition Off Disconnect the ECU connector X54 (hopefully will be marked)
    pin 2 of O2 sensor connector to pin 17 of ECU connector should be les than 5 ohms
    Report back what readings you get
    Hope this helps

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