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Thread: Oil Level sensor JZZ30 Soarer

  1. #1
    Junior Member Grease Monkey
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    Default Oil Level sensor JZZ30 Soarer

    Anybody know how these work? looking at the wiring diagram they seem a simple idiot light, but I cannot figure out.

  2. #2
    Junior Member Automotive Encyclopaedia 2jzhilux's Avatar
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    Default Re: Oil Level sensor JZZ30 Soarer

    if they are the same as pretty much every other toyota its just a float that is hooked up to an idiot light
    maybe get a multimeter to confirm that you have continuity when the float is in the empty sump position

  3. #3
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    Default Re: Oil Level sensor JZZ30 Soarer

    That what i have thought, but testing with a multimeter showed the sensor has continuity reguardless of float position.

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    Junior Member Automotive Encyclopaedia 2jzhilux's Avatar
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    Default Re: Oil Level sensor JZZ30 Soarer

    maybe check for resistance while moving the float see if it changes

  5. #5
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    Default Re: Oil Level sensor JZZ30 Soarer

    ok just connected Ohms meter across the 2 terminals and moved the float up and down, there was no change in the value reguardless of the float position any other suggestion?

  6. #6
    Junior Member Domestic Engineer NeoNasty's Avatar
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    Default Re: Oil Level sensor JZZ30 Soarer

    Busted sensor?
    HZJ75, RS41, JZZ30

  7. #7
    Toymods Vice President Chief Engine Builder TheToyman75's Avatar
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    Default Re: Oil Level sensor JZZ30 Soarer

    I have this sensor wired up and working in my Wagon. From memory Mos had to use the control box for it from the halfcut.
    1971 2T-B Celica TA22 ST.
    1973 2T-G Celica TA22, aka "The Unicorn".
    1975 2T-G Celica TA27 GT
    1976 2T-G Celica TA23, aka "The Colonel".
    1985 3F Auto FJ62 Landcruiser
    1989 7M-GTE MA70 Supra, aka "The Poopra"

    History: Rods Classic Celica Sampler thread.

  8. #8
    Junior Member Grease Monkey
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    Default Re: Oil Level sensor JZZ30 Soarer

    OK, so where is Mos, sounds like he could give me the help I need.
    Gee I 'm glad Toyota did n't include the control box in the wiring diagram I might have had problems getting to work........

  9. #9
    Junior Member Grease Monkey BMWTurbo's Avatar
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    Default Re: Oil Level sensor JZZ30 Soarer

    I've connected the toyota sensor to the BMW computer and it seems to be one 'step' out..

    Ie when I get oil level sensor error on the dash, oil is low and when I get oil level low the oil level is okay...

    I had a play with meter and got the same results, so gave up and am dealing with it

  10. #10
    Junior Member Grease Monkey
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    Default Re: Oil Level sensor JZZ30 Soarer

    BMWTurbo, is your sensor error on the dash an idiot light or a guage?

  11. #11
    Founding ****** Automotive Encyclopaedia Mos's Avatar
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    Default Re: Oil Level sensor JZZ30 Soarer

    I think they're inductive, but haven't scoped so only a hypothesis.
    Newer clusters run these sensors directly. In older cars, such as a JZA70, there is a separate "ECU" for this sensor to allow it to connect to an idiot light. Rod's car has this additional ECU out of a JZA70 halfcut hooked up (even though the original engine was out of a JZZ30). I don't know if there is another source of these ECUs, but it's likely.
    Mos.
    Admin, I.T., Founding Member, Toymods Car Club Inc.
    2000 IS200 Sports Luxury 1UZ-FE VVTi, 1991 MX83 Grande 2JZ-GTE (sold)

  12. #12
    Junior Member Grease Monkey BMWTurbo's Avatar
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    Default Re: Oil Level sensor JZZ30 Soarer

    Rogue, It's actualyl computer controlled. Has 'oil pressure sernsor fail', ' oil pressure low' and nothing if it's all okay...

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