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Thread: Oxygen Sensor 3.5EFI V8 Rangie

  1. 25th September 2005, 07:17 PM #1
    smac
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    Oxygen Sensor 3.5EFI V8 Rangie

    Just wondering how hard it is to test/ replace the oxygen sensor on my 87 rangie.

    my beast runs rich, blows a bit of smoke, runs rough sometimes, very gutless as well.

    i have tried another air flow meter to no difference, i was talkin to a triumph guy and he said it sounded like the oxygen sensor.

    Are these generic? or do i have to get a specific one?

    thanks,
    Shem McAllister
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  2. 26th September 2005, 03:53 AM #2
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    p38arover
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    Are you sure it has one? My 1995 P38A Range Rover doesn't have them. I don't think they were fitted until 1999.

    Check the exhaust downpipes. If you have them, there will be one on each down pipe.

    My '86 RR didn't have them.

    Ron
    Ron B.
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  3. 26th September 2005, 07:39 AM #3
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    Michael2
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    O2 sensors are generic, some have three wires as they're preheated by the ECU. They're located on the exhaust. I don't think my '88 Rangie has them.
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  4. 26th September 2005, 04:22 PM #4
    shaunp
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    They don't have them.
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  5. 26th September 2005, 04:50 PM #5
    smac
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    ah ok, well that answers that question then dont it.
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  6. 26th September 2005, 06:28 PM #6
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    DEFENDERZOOK
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    [b]<span style="color:darkred">check the vaccuum advance unit on the distributor.....


    and also the coolant temp sensor....</span>
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  7. 26th September 2005, 07:27 PM #7
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    discowhite
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    ide put it all down to the compression ratio!
    thats if its 8.13:1.
    ive replaced all the offending items in the search for the fix to your question!
    the answer is there aint one!
    you name it ive replaced it. the vacume advance unit dont do s%$t. i havent had one for 2yrs now and DW goes better with out it, and it dosent use any more fuel that before.

    <div class='quotetop'>QUOTE</div><div class='quotemain'>shaunp Posted: Mon Sep 26, 2005 5:22 pm Post subject:
    They don't have them[/b][/quote].
    correct!.

    its a fact of life. i just live with it!

    phil
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  8. 26th September 2005, 07:45 PM #8
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    rangieman
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    if you have a 02 sensor it aint standard
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  9. 26th September 2005, 08:34 PM #9
    smac
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    i think that we have already all agreed that i more than likely dont have a 02 sensor.

    So discowhite - you reckon compression? if it is stuffed, how much would that be to fix?

    BTW, i dont really wanna keep the rangie for long, so if anyone wants to make an offer
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  10. 27th September 2005, 09:45 AM #10
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    discowhite
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    <div class='quotetop'>QUOTE</div><div class='quotemain'>So discowhite - you reckon compression? if it is stuffed, how much would that be to fix? [/b][/quote]

    it probably isnt stuffed! what i was saying was that such a low compression
    ratio will not burn the fuel mixture as well as say the 9.35:1 engine.(giving the sooty/hase out the exhaust)
    i got bored the other day and did a cylinder leakage test and compression test.
    leakage test showed all good at 25% per cyl and the comp test was between 145 and 155psi. these are factory figures and i was expecting
    a 240 000 k engine to be alot worse than that. if youve seen me drive
    my disco youde think i had stole it :roll:

    what sort of smoke is it and when?? black blue white, first start of the day
    ideling or under load??

    a compression test will tell you alot.

    phil.
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