Hyper-Technical: Exposing The 348/355/MondialT Bosch MAF | Page 2 | FerrariChat

Hyper-Technical: Exposing The 348/355/MondialT Bosch MAF

Discussion in 'Technical Q&A' started by No Doubt, Mar 29, 2008.

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  1. speedy_sam

    speedy_sam F1 Veteran

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    Stupid question ... Should the engine be off and the battery connected when testing this?
     
    speedy_sam, Aug 1, 2008
    #26
  2. No Doubt

    No Doubt Seven Time F1 World Champ

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    Engine off, yes...but battery on or off doesn't matter for measuring the MAF's ohm resistance.
     
    No Doubt, Aug 2, 2008
    #27
  3. speedy_sam

    speedy_sam F1 Veteran

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    Thanks ND :)
     
    speedy_sam, Aug 2, 2008
    #28
  4. pyroguy

    pyroguy Formula Junior Owner

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    Just reading through this thread. Good info. However in your above description "Bosch part # "0 280 212 018" is Ferrari 348/Mondial t M2.7 & M2.5 part #136374" I was wondering if you meant 5.2 Vs 2.5? Or am I missing something here?
     
    pyroguy, Aug 2, 2008
    #29
  5. ernie

    ernie Two Time F1 World Champ Lifetime Rossa Owner

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    The 2.5 Motronic was used in '89 model year 348's. These cars have only one throttle position sensor.

    The Motronic 2.7 was used on late year build 348's '90 and on. There is an actual build number that they started using the 2.7 in, but I'm too lazy to look for it. These cars have a throttle position sensor on each throttle body.

    Also

    '94-'95 355's used the Motronic 2.7 and these cars use 2 MAFS.

    The 5.2 Motronic was used on '96 and above 355's. These cars have only one Mass Air Flow Sensor.
     
    Last edited: Aug 8, 2008
    ernie, Aug 8, 2008
    #30
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