KIA/Fiat Crank position sensors (CPS) work in the 348... | FerrariChat

KIA/Fiat Crank position sensors (CPS) work in the 348...

Discussion in '348/355' started by Marco Bussadori, Mar 21, 2009.

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  1. Marco Bussadori

    Marco Bussadori Formula Junior

    Aug 6, 2007
    430
    London
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    Marco Bussadori
    #1 Marco Bussadori, Mar 21, 2009
    Last edited by a moderator: Sep 7, 2017
    Hey guys, Photographic evidence is the best kind... I had to lift the car for an oil change so had a chance to take the pictures. I have run the car on these for over 3 weeks and everything worked perfectly so far. There is a difference in the resistance of the coils in the Bosch and facet sensors. There was one between the Bosch sensors too. I forget the exact amount but it is of several hundred ohms.

    The ECU does not send a reference current that gets attenuated by the coil, it is the coil that generates a current by converting a change in a magnetic condition into a pulse of current. The pulse is detected by referengin it against a baseline which the ECU sets by doing a simple AD/DA conversion (Analog to Digital/Digital to Analog). This means the actual resistance is somewhat irrelevant as it is directly proportional to the size of the detection coil. The Bosch censors has a different core magnet arrangement than the aftermaket part, meaning the coil windings will be different between the units. The importance is that the signal spike is as big over the baseline as the Bosch one and it is (tested with an oscilloscope).

    I replaced the original Bosch crank position sensors (19 years old with cracked connectors) with aftermarket ones made by Facet in Italy. The facet part number is photographed below. These cost GBP 37 each at an auto store in London.
    Conversion of part numbers is:
    Bosch 0 261 210 029
    FIAT 7616269
    KIA 0K2A6-18-891

    Enclosed pictures constituting chain of evidence, of the original part (with number), label on box with Bosch to facet and other brand conversion, fitted parts on car.

    Incidentally, the blueish goo on the male connector is silicone. I filled the rubber boots with it after cleaning with brake cleaner. This will ensure that water, oil and grime will stay out of the connector.

    Enjoy ;-)
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  2. FandLcars

    FandLcars F1 Rookie

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    #2 FandLcars, Mar 21, 2009
    Thanks for posting, Marco!
     
  3. ernie

    ernie Two Time F1 World Champ
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    #3 ernie, Apr 13, 2009
    What a good Stooge!
     
  4. PAP 348

    PAP 348 Nine Time F1 World Champ
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    #4 PAP 348, Apr 13, 2009
    Fantastic Marco! :D:D
     
  5. troy_wood

    troy_wood Formula 3

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    #5 troy_wood, Apr 13, 2009
    You're awesome Marco - and a damn smart fellow!!!
     
  6. Philip Barnard-Browwn

    Philip Barnard-Browwn Karting

    Feb 25, 2007
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    london.
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    Philip Barnard-Brown
    #6 Philip Barnard-Browwn, Apr 15, 2009
    Is it the sensor that is faulty or just the plug that is broken in these instances? If it is just the plug why don't we simply source a replacement plug? Mine needs replacing also but it's only the plug end that is broken. Where would i start to look for this type of thing? There does seem to be more outlets in the US dealing in connections like this. Is this a good place to start?
     
  7. PAP 348

    PAP 348 Nine Time F1 World Champ
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    #7 PAP 348, Apr 15, 2009
    I think the perished connector is the issue here mate. :):)

    Someone in another thread was looking into replacing the connectors and I actually think he managed to find some, I think??? :D:D
     
  8. Philip Barnard-Browwn

    Philip Barnard-Browwn Karting

    Feb 25, 2007
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    #8 Philip Barnard-Browwn, Apr 15, 2009
    Hey guys i have found the source interchange thread. Great reference stuff there. Thanks.
     
  9. Marco Bussadori

    Marco Bussadori Formula Junior

    Aug 6, 2007
    430
    London
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    Marco Bussadori
    #9 Marco Bussadori, Apr 16, 2009
    You can buy all the plugs you need at www.autoelectricsupplies.co.uk. I looked into that and felt the additional work etc. wasn't worth it, so I swapped the units for new ones.

    My cables cracked the outer insulation at the sensor end (see top picture). Last thing I wanted was lingering moisture slowly screwing up the internals of the sensor (hair thin copper windings) and causing problems later on. GBP 40 on each sensor just did not make sense trying to fix them.

    Marco
     
  10. troy_wood

    troy_wood Formula 3

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    #10 troy_wood, Apr 16, 2009
    +1 exactly the conclusion I came up with....
     
  11. Kaivball

    Kaivball Three Time F1 World Champ
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    #11 Kaivball, Apr 6, 2011
    That sensor is now available at Kiaparts.com for only $24.19

    0K2A6-18-891

    Kai
     
  12. 3forty8

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    #12 3forty8, Apr 7, 2011
  13. ernie

    ernie Two Time F1 World Champ
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    #13 ernie, Apr 7, 2011
    LOL!

    That was pretty funny Eric.
     
  14. Organiser

    Organiser Formula Junior

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    #14 Organiser, Apr 7, 2011
    Last edited by a moderator: Sep 7, 2017
  15. Foxy348

    Foxy348 Karting

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    #15 Foxy348, Apr 14, 2011
    I've been running the Kia ones for over a year and they work fine. No issues. They do have tiny Kia logos on them, but no-one looks under my car, so no problem there. LOL
     
  16. Kaivball

    Kaivball Three Time F1 World Champ
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    #16 Kaivball, Apr 14, 2011
    are you sure you want to fill the connector with silicone goo?

    Dave Helms will have a heart attack reading this.

    I just spent 4 weekend installing the gold kit and taking every effort to REMOVE any trace of silicone in the connectors...

    Kai
     
  17. dahveedem

    dahveedem Formula 3

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    #17 dahveedem, Mar 1, 2016
    Curious on these... when you pulled your old ones was there a thin washer on yours?
     
  18. 348Jeff

    348Jeff Formula 3

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    #18 348Jeff, Mar 4, 2016
  19. Jaybird

    Jaybird Karting

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    #19 Jaybird, Mar 5, 2016
    Been running the Kia sensors for over a year and a half now. Seem to perform fine.
     
  20. dahveedem

    dahveedem Formula 3

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    #20 dahveedem, Mar 5, 2016
    Curious did you have any type of washer on yours?

    Sent from my SPH-L720 using Tapatalk
     
  21. Jaybird

    Jaybird Karting

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    #21 Jaybird, Mar 5, 2016
    Its been a while but not that I can recall.
     
  22. vjlax18

    vjlax18 Formula Junior
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    #22 vjlax18, Mar 5, 2016
    Paper thin metal washers on mine.
     
  23. m.stojanovic

    m.stojanovic F1 Rookie
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    #23 m.stojanovic, Mar 5, 2016
    Thin washers are normally used to fine-adjust the air gap of the sensors. When replacing the sensors (OEM or aftermarket) the air gap should be re-adjusted. As the range is wide (0.35 to 0.90 mm), the value itself is not critical but the gap should be made equal left and right as much as possible.
     
  24. Brewman

    Brewman Formula Junior

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    #24 Brewman, Mar 6, 2016
    There are actually cavity plugs made to fill the void between the wire and connector housing. The wire is inserted thru a hole in the center of the plug which is then pushed into the connector. See Mouser Electronics (Mouser Electronics - Electronic Components Distributor) part number 571-828904-2 for an example. There are different plugs based on the size (OD not AWG) of the wire you are working with.
     
  25. cf355

    cf355 F1 Rookie

    Feb 28, 2005
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    #25 cf355, Mar 6, 2016
    thats interesting
     

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