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Thread: Fitting O2 Sensors to D2A V8?

  1. 12th March 2015, 07:07 PM #1
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    DaveA1963
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    Fitting O2 Sensors to D2A V8?

    Hi,

    I have two new O2 sensors for my V8 & was wondering what the procedure is?

    Can I simply fit them or do I need to do something to the computer settings as well so it starts "learning"?
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  2. 12th March 2015, 08:16 PM #2
    Modelsp
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    Disconnect the Battery while fitting them
    then the computer defaults will be reset when your finished the job
    the plugs above the exhaust warrant this being done while motor is cold
    they slide out of the brackets towards the rear of the car.
    this gives you a small amount of free cable to get your hands around the plugs to undo them
    also check the plugs and sockets on old and new are the same before going too far
    the new ones i fitted had the opposite to what was original so needed new plugs fitted.15/16th" ring spanner to undo out of pipe be sure to get it fitting nicely as they can be very!! tight to undo.
    when finished allow to idle until warmed up so the ECU can get used to the new ones.
    hopefully this helps
    Cheers
    Paul
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  3. 12th March 2015, 08:18 PM #3
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    DaveA1963
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    Thanks Paul! That's awesome!

    I had a vague feeling that I needed a Nanocom to reset something, but if it's this easy (famous last words?), great!
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  4. 13th March 2015, 04:18 AM #4
    Road Stone Guest
    Good advice there. All i'll say is the "being tight" comment is a understatement.

    Be preparedand drench with crc/wd40 24 hours in advance!

    Cheers
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  5. 13th March 2015, 07:05 AM #5
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    ozscott
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    Dont forget to fit new ones with the special grease that should come with them to stop them seizing in there.

    Cheers
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  6. 13th March 2015, 08:03 AM #6
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    "cooked" was the word my mech used---
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    '93 V8 Rossi
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  7. 13th March 2015, 08:20 AM #7
    Roverlord off road spares
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    Disconnecting the battery will not clear any stored codes for faults, so they will still be there if some one does a diagnosis.
    Also if your entertainment system has codes, then make sure you have them before you disconnect the battery as you might need to reprogram the radio.

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  8. 13th March 2015, 10:59 AM #8
    lewy
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    You can buy a "special" socket to get them out from super cheap if they are to tight.Don't forget to remove the socket after you have replaced them,
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  9. 13th March 2015, 12:03 PM #9
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    Fitting O2 Sensors to D2A V8?

    Quote Originally Posted by Roverlord off road spares View Post
    Disconnecting the battery will not clear any stored codes for faults, so they will still be there if some one does a diagnosis.
    Also if your entertainment system has codes, then make sure you have them before you disconnect the battery as you might need to reprogram the radio.

    Anybody in Darwin got a Nanocom & can clear the codes for me? Happy to pay you to do it for me!

    I have the card with the radio codes.
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  10. 13th March 2015, 12:27 PM #10
    lewy
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    I have a msv2 which is locked to my vin so no help,The stored codes will not effect the new sensors just remember in the future that any stared faults will possibly be from before you replaced sensors.The computer will sense the new sensors and adjust the mixtures etc.It is always a good idea to disconect the battery when playing with plugs etc.
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