Oxygen Sensor 205 gti
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  1. #1
    Member jamin's Avatar
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    Icon10 Oxygen Sensor 205 gti

    Hi Guys,
    I've just had my oxygen sensor changed for a nice shiny new one.
    It has made one hell of a difference to performance and idling.
    The car revs alot smoother and when you take the revs off goes straight back to idle about 950 rpm.
    Haven't checked out the fuel consuption improvements yet but if you have not changed it recently, I highly recommend doing so!

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    Cheers
    Ben

  2. #2
    Fellow Frogger! WRCPUG's Avatar
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    Nice to here my car is running like a dog i think i need to get a new O2 sensor.
    How much and where did u get yours?
    PEUGEOT 306 GTi6 (1997-1999 HYBRID)
    105.4kw (141HP) ATW
    2:09 Phillip Island (Toyo Street Tyres)

    2001 YAMAHA YZF-R6
    119HP

    1993 MITSUBISHI 3000GT Twin Turbo
    300BHP
    STOCK-14.006 @97.4mph HEATHCOTE
    STOCK-1:15 CALDER Long Circuit (Stock Street Tyres + Stock Pads :banghead )
    (For Sale)

  3. #3
    Member jamin's Avatar
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    O2 sensor cost about $120 - $140 can't remember exactly.
    I get my car serviced at 'The French Garage' so Elliot got it in for me.
    He got the O2 sensor cheaper than what they are at EAI.net.au.
    He can be contacted at:
    http://www.frenchgarage.com.au/

    Cheers
    Ben

  4. #4
    Member 350manx's Avatar
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    Quote Originally Posted by jamin
    O2 sensor cost about $120 - $140 can't remember exactly.
    I get my car serviced at 'The French Garage' so Elliot got it in for me.
    He got the O2 sensor cheaper than what they are at EAI.net.au.
    He can be contacted at:
    http://www.frenchgarage.com.au/

    Cheers
    Ben
    How does one decide they need a new sensor?

  5. #5
    Member jamin's Avatar
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    My car was running like crap and wouldn't hold idle.
    The O2 sensor had never been changed and it was either replace that or the Air Flow meter, the O2 sensor won cause it was cheaper.
    Peter T would know the finer points of this but that's what happened to me.
    I believe it helps with the fuel ecomony aswell, I think mine was running to rich as the spark plugs had a dry black coating on them.
    Cheers
    Ben

  6. #6
    1000+ Posts PeterT's Avatar
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    The later Motronic equipped 205's are very sensitive to the O2 sensor. I once had one that would start up fine and drive around the block fine. But after a restart would run like a pig for a few minutes, until the O2 sensor got hot enough to work properly.

    '92 205 Mi16
    '90 Mi16x4

  7. #7
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    Quote Originally Posted by PeterT
    The later Motronic equipped 205's are very sensitive to the O2 sensor. I once had one that would start up fine and drive around the block fine. But after a restart would run like a pig for a few minutes, until the O2 sensor got hot enough to work properly.
    On start up it would be running a seperate (richer mixture) program and not using the oxygen sensor. On warm up it will drop into closed loop operation.
    My 205 Si is in desperate need of an oxy sensor, it is very jerky on quick throttle applications, OK in steady state.
    It has done 230000km, way over the recommended change interval.
    Graham

  8. #8
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    Interesting, i have an issue with my K light popping on and off at random, have checked all connections and wires for sensors and all seem fine, could this be an O2 issue as my fuel ecomny seems to very, not heaps but it's not constant..
    05' Megane 225 Cup

  9. #9
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    Quote Originally Posted by pugsy
    Interesting, i have an issue with my K light popping on and off at random, have checked all connections and wires for sensors and all seem fine, could this be an O2 issue as my fuel ecomny seems to very, not heaps but it's not constant..
    When my Si had a bad connection to the oxygen sensor the ECU light (this is a transistor symbol, not a K) was coming on some of the time.
    Graham

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