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Thread: Identification of SBEC vs SBEC2

  1. #1
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    Identification of SBEC vs SBEC2

    I am trying to visually identify a SBEC vs SBEC2. I was able to find at least one of each type that I could verify. Lots of issues such as no part number on the ECU and none on the chip. I have several that I cannot find in the ECU-LISTING.document or fiche. I have two picture, the first I believe is the a 1990 SBEC, I noticed a thermistor half way up on the right hand side and near the connector a wide ceramic hybrid device. The second I believe to be an SBEC2. There are two vertical resistor arrays on the right side of the board near the top and a thermistor to the right of the 60 way at the top.
    https://drive.google.com/open?id=1zw...fdR84hJHqMuATD
    https://drive.google.com/open?id=1iI...aQFu-bYlJtq0S1
    Attached Thumbnails Attached Thumbnails Click image for larger version. 

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    Last edited by chromguy; 07-21-2019 at 05:06 PM.
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    '87 CSX #432

  2. #2
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Identification of SBEC vs SBEC2

    I thought the later ECUs used a chip that actually took advantage of all the holes? This is interesting, because I never had to do this before.

  3. #3
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    Re: Identification of SBEC vs SBEC2

    Quote Originally Posted by cordes View Post
    I thought the later ECUs used a chip that actually took advantage of all the holes? This is interesting, because I never had to do this before.
    I was told some versions of SBEC2 used 36 pin chip but all my stock SBEC2 are 32 pins. I do have a socketed one with a FWD stage 5 in 28 pin and works according to the PO. It reports to my scanner 4000 scanner as a 91 SBEC. After I create my SBEC engine simulator this winter I will test.
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    '87 CSX #432

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    Re: Identification of SBEC vs SBEC2

    my 2 93 sbec2s have 32 pin chips that also have pads open for 4 more pins, of which it appears 2 only have traces to them. miles, what do the back of the boards say/look like. any numbers? are any of these tcm modules? there is a 93 tcm module that has a chip code of 04686225 according to some info i have. the back of my sbec2 say 4517652.
    89 Voyager LE, 2.5T2 - rest in peace
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  5. #5
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    Re: Identification of SBEC vs SBEC2

    Quote Originally Posted by wowzer View Post
    what do the back of the boards say/look like. any numbers? are any of these tcm modules? there is a 93 tcm module that has a chip code of 04686225 according to some info i have. the back of my sbec2 say 4517652.
    I can have a look at the backs tonight. I do have one TCM from a 92 V6 car in storage
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    '87 CSX #432

  6. #6
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    Re: Identification of SBEC vs SBEC2

    Minor update.
    I have checked many SBEC and SBEC2 using my OTC4000e scanner and the assignment in #1 is correct.
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    '87 CSX #432

  7. #7
    Supporting Member II Turbo Mopar Contributor 85lebaront2's Avatar
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    Re: Identification of SBEC vs SBEC2

    The one I sent you should be an SBEC2 it was from a 1993 3.3L Grand Caravan with A604 and Bendix10 ABS.
    "growing old is inevitable, growing up is optional"
    1986 Lebaron convertible to replace totalled 85
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  8. #8
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    Re: Identification of SBEC vs SBEC2

    Quote Originally Posted by 85lebaront2 View Post
    The one I sent you should be an SBEC2 it was from a 1993 3.3L Grand Caravan with A604 and Bendix10 ABS.
    Thank you for sending me the 3.3L and it is more populated than the 3.0 version but I have been on the road the last few week and did not get a chance to document the changes. I did see two extra coil driver chips that can also double as INJ7 and INJ8.
    I would also like thank Murphy for the SBEC units that he sent to me.
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    '87 CSX #432

  9. #9
    Supporting Member II Turbo Mopar Contributor 85lebaront2's Avatar
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    Re: Identification of SBEC vs SBEC2

    The 3.3L and 3.8L engines use a coil pack with 3 coils in it, so that is the reason for the extra coil drivers. From what I remember reading somewhere a while back, that one is considered "fully populated" due to the fact it is a sequential injection and coil pack system.
    "growing old is inevitable, growing up is optional"
    1986 Lebaron convertible to replace totalled 85
    1986 Ford F350 Crew Cab DRW
    1995 Lincoln Continental (project car)
    2011 Ford Flex Limited (wife's)

  10. #10
    Rhymes with tortoise. Turbo Mopar Staff cordes's Avatar
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    Re: Identification of SBEC vs SBEC2

    Interesting. The 3.3 cars are piled high in my local JYs these days. If we could easily adapt those computers, it would be awesome.

  11. #11
    Supporting Member II Turbo Mopar Contributor 85lebaront2's Avatar
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    Re: Identification of SBEC vs SBEC2

    The one I sent was from a 1993 GC, he had me just send the potted interior so it was a smaller package. I believe the "guts" are the same shape and can be installed in a car casing.
    "growing old is inevitable, growing up is optional"
    1986 Lebaron convertible to replace totalled 85
    1986 Ford F350 Crew Cab DRW
    1995 Lincoln Continental (project car)
    2011 Ford Flex Limited (wife's)

  12. #12
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    Re: Identification of SBEC vs SBEC2

    Quote Originally Posted by 85lebaront2 View Post
    The one I sent was from a 1993 GC, he had me just send the potted interior so it was a smaller package. I believe the "guts" are the same shape and can be installed in a car casing.
    Yes I agree as the PCB part number is identical
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    '87 CSX #432

  13. #13
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    Re: Identification of SBEC vs SBEC2

    The SBECII original chip was 32 pins, I had a FWD tune in my car that only used 28 pins as well. When I switched to the BB Flash able ECU module, those require 36 pins. The traces should be there for all 4 pins as well as the holes for the pins. It is my understanding that the extra pins were originally used for development. You would need to read Rob's post when he originally dug into developing the BB Flash able SBECII. One other thing to note, the BB flash able module uses the first 28 pins, omits the next 4 (29-32) and then uses the last 4 pins.

  14. #14
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    Re: Identification of SBEC vs SBEC2

    SBEC TIII 91 R/T





    Sent from my iPhone using Tapatalk

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    Re: Identification of SBEC vs SBEC2

    Quote Originally Posted by DoubleD View Post
    SBEC TIII 91 R/T
    Thank you what are the colour of the plastic under the black heatsinks? Green?. yellow? etc from left to right
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    '87 CSX #432

  16. #16
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    Re: Identification of SBEC vs SBEC2

    Here are some more pics of the sbec tiii





    Sent from my iPhone using Tapatalk

  17. #17
    boostaholic
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    Identification of SBEC vs SBEC2

    Here are pics of a SBECII TIII. (1992 Daytona IROC R/T)







    Sent from my iPhone using Tapatalk

  18. #18
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    Re: Identification of SBEC vs SBEC2

    Quote Originally Posted by DoubleD View Post
    Here are pics of a SBECII TIII. (1992 Daytona IROC R/T)
    Thank you!
    Regards,
    Miles

    DD '87 Sundance T1, 12PSI, SLH with rear disks
    '87 CSX #432

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