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Thread: S54 swap CAN interface for proper CEL, A/C

  1. #26
    Join Date
    Apr 2005
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    Tampa, FL
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    3,377
    My Cars
    97 E36M3 S54
    So has anyone else had a random CEL even though there aren't any DTC's, and constant aux fan on low? CAN adapter seems to work intermittently :/

  2. #27
    Join Date
    Jul 2003
    Location
    Texas
    Posts
    507
    My Cars
    1997 M3/4/A
    Damn, u have that problem too? I thought I was the only one. I’ve PM him over a month ago about it with no response....

  3. #28
    Join Date
    Apr 2005
    Location
    Tampa, FL
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    97 E36M3 S54
    Quote Originally Posted by brokeazz View Post
    Damn, u have that problem too? I thought I was the only one. I’ve PM him over a month ago about it with no response....
    Yea! Just got my car running too and then the stupid CEL is on and off and aux fan constant low. So do you have both exact symptoms? If so the likelihood of it being a wiring issue goes down drastically. I am thinking there may be slightly different CANbus messages through E46 years that are slightly incompatible with what Gpeterson captured. Is your DME MSS54HP too?

  4. #29
    Join Date
    Jul 2003
    Location
    Texas
    Posts
    507
    My Cars
    1997 M3/4/A
    Yes aux fan is on constantly on low. I don’t have the random cel on off, if I turn on the ignition to 2 and start within 4-5 seconds then the cel will shut off after start, but if I turn it on and leave it in ignition 2 for more than 4-5 seconds then start, then my cel will stay on. When I restart right after the cel will not even come on at all.
    I have the ms54hp

  5. #30
    Join Date
    Jan 2011
    Location
    Northern CA
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    1998 M3/4/5
    Quote Originally Posted by M52 POWER! View Post
    Yea! Just got my car running too and then the stupid CEL is on and off and aux fan constant low. So do you have both exact symptoms? If so the likelihood of it being a wiring issue goes down drastically. I am thinking there may be slightly different CANbus messages through E46 years that are slightly incompatible with what Gpeterson captured. Is your DME MSS54HP too?
    Will reply to your PM a bit later this morning, we will get this figured out.

    - - - Updated - - -

    Quote Originally Posted by brokeazz View Post
    Yes aux fan is on constantly on low. I don’t have the random cel on off, if I turn on the ignition to 2 and start within 4-5 seconds then the cel will shut off after start, but if I turn it on and leave it in ignition 2 for more than 4-5 seconds then start, then my cel will stay on. When I restart right after the cel will not even come on at all.
    I have the ms54hp
    Sorry, just looked at old PMs and saw I never replied, will be in touch today.

  6. #31
    Join Date
    Apr 2005
    Location
    Tampa, FL
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    My Cars
    97 E36M3 S54
    Garry,

    PM sent, would really like to get this and my AC working properly as the car is my DD and FL is hot!

  7. #32
    Join Date
    Jan 2011
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    Northern CA
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    1998 M3/4/5
    Quote Originally Posted by M52 POWER! View Post
    Garry,

    PM sent, would really like to get this and my AC working properly as the car is my DD and FL is hot!
    PMs replied. I may be slower to respond today because of work travel.

  8. #33
    Join Date
    May 2018
    Location
    La
    Posts
    1
    My Cars
    E30 E92
    Can I please order a CAN interface for an e30 s54 swap

  9. #34
    Join Date
    Jul 2016
    Location
    Holmdel NJ
    Posts
    34
    My Cars
    1997 M3 S54, 2006 M3,
    Need one of these! PM sent

    Thank you

  10. #35
    Join Date
    May 2005
    Location
    Tx
    Posts
    109
    My Cars
    E46 M3, E28, E38s, E46
    Sent you a PM
    Current Garage... '00 R11S, '09 HP2S, '12 R12GSA, '00 Black 323iT (wife's), '02 Alpine 325iT (Eileen, Track Wagon)

    Instagram @ HillPerformanceBimmers
    Email to George@HillPerformance.com

  11. #36
    Join Date
    Nov 2013
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    Reisterstown, MD
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    46
    My Cars
    95 1jz M3,01 740i MSport
    Gary, still have these? Would like to buy one if they are available!

  12. #37
    Join Date
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    Northern CA
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    1998 M3/4/5
    Quote Originally Posted by iPulOut View Post
    Gary, still have these? Would like to buy one if they are available!
    Yep, still do!

  13. #38
    Join Date
    Apr 2005
    Location
    Tampa, FL
    Posts
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    97 E36M3 S54
    I just want to post that myself and other fellow S54 swappers have all had terrible issues with this device just absolutely not working as intended. We have reached out to Garry via dozens and dozens PM's and emails for over a year and it just goes nowhere, even offering engineering assistance and diagnosis as some of us work in those trades. At some point during this device being sold the PCB and other components were updated (black vs white connector was the marker I believe) and that later revision seems to have many problems.


    It overheats due to the Voltage regulator being undersized.
    This causes the MCU to stop working.
    This stops everything it was intended to do to not work.

    Also the fan low speed circuit is always enabled which causes cooling performance issues.

    CEL illuminates in key position 2, and stops illumination in run, but I actually have an active CEL.

    My active CEL is due to a time clock issue, related to this device not working and broadcasting a timestamp, and thus the DME throws a CEL.

    AC control works, until the device overheats, which is about 5 minutes.

  14. #39
    Join Date
    Mar 2006
    Location
    Edmonton,CANADA
    Posts
    792
    My Cars
    1997 BMW M3 Coupe
    .
    Last edited by mitch500; 04-14-2019 at 02:18 PM.
    ()()===[][]===()()


  15. #40
    Join Date
    Sep 2007
    Location
    UT
    Posts
    4,375
    My Cars
    98 M3/4/5
    Yeah mine worked great,l when new, but after 2 months it stopped for some reason, Dan always on low, CEL doesn’t work, and the AC doesn’t function as it should either.
    98 Estoril ///M3 4/6
    S54 swap CSL

  16. #41
    Join Date
    Jan 2011
    Location
    Northern CA
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    1998 M3/4/5
    I've sold 100+ of these and had a small number of issues. I'm sorry if I dropped the ball on support - if anyone is still having issues please PM me with "CAN support" in the subject and I'll do my best to get you sorted out ASAP. TH3/M52/mitch, I'll PM you guys now.
    S54 swap DME flashing - $100
    S54 swap CAN interface board (for proper A/C & check engine light) - $275
    e36 SAP sim/secondary air pump simulator:
    $75 - standard or $170 - plug & play
    e36 post-cat O2 sims: $115 shipped, plug & play

  17. #42
    Join Date
    Jul 2003
    Location
    Texas
    Posts
    507
    My Cars
    1997 M3/4/A
    I’m having these same issues as everyone else....I’ve even sent it back to you and when I got it back it was even worse than before. I’ve tried PM months ago but no reply

  18. #43
    Join Date
    Jan 2011
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    Northern CA
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    1998 M3/4/5
    Quote Originally Posted by brokeazz View Post
    I’m having these same issues as everyone else....I’ve even sent it back to you and when I got it back it was even worse than before. I’ve tried PM months ago but no reply
    Sending PM, will start handling all support via email so things don't get missed.

  19. #44
    Join Date
    Jun 2013
    Location
    Sydney
    Posts
    84
    My Cars
    1992 E36 320i
    Are these still available? If so I’m very keen to buy one.

  20. #45
    Join Date
    Dec 2010
    Location
    Santa Barbara, CA
    Posts
    66
    My Cars
    '90 325i: S54 6 Speed 5
    For anyone interested, here is the wiring:





    - - - Updated - - -

    Also, how to control the Fan Speeds from the DME, and TunerPro XDFs to modify the MSS54 DME for the swap are here: Github


    '90 325i: S52+C&S chip, 5 Lug, ZF320, 2.93 LSD

    RIP: '88 325is: M50B25TU+M3 Cam+Turner Chip, ZF320+ 2.93 LSD


  21. #46
    Join Date
    Jan 2007
    Location
    Durham, NC
    Posts
    1,600
    My Cars
    2x 97 M3/4, 05 530i
    Mine seems to have shit the bed again. Sent a PM..... not sure I've got your email.

  22. #47
    Join Date
    Feb 2017
    Location
    Riga, Latvia
    Posts
    1
    My Cars
    1987 BMW E30 diesel
    Quote Originally Posted by gpeterson View Post
    Sending PM, will start handling all support via email so things don't get missed.
    Hi! Can you please PM me your email. Can't send PM's. Most likely it's because of "new members restriction". Don't know why it was allowed to send me few PM's earlier..

  23. #48
    Join Date
    Sep 2020
    Location
    tx
    Posts
    1
    My Cars
    E36 M3
    Quote Originally Posted by M52 POWER! View Post
    I just want to post that myself and other fellow S54 swappers have all had terrible issues with this device just absolutely not working as intended. We have reached out to Garry via dozens and dozens PM's and emails for over a year and it just goes nowhere, even offering engineering assistance and diagnosis as some of us work in those trades. At some point during this device being sold the PCB and other components were updated (black vs white connector was the marker I believe) and that later revision seems to have many problems.


    It overheats due to the Voltage regulator being undersized.
    This causes the MCU to stop working.
    This stops everything it was intended to do to not work.

    Also the fan low speed circuit is always enabled which causes cooling performance issues.

    CEL illuminates in key position 2, and stops illumination in run, but I actually have an active CEL.

    My active CEL is due to a time clock issue, related to this device not working and broadcasting a timestamp, and thus the DME throws a CEL.

    AC control works, until the device overheats, which is about 5 minutes.
    Tried to send you a PM. Wondering if you went with another solution or if you're still using this?

  24. #49
    Join Date
    Jul 2003
    Location
    Texas
    Posts
    507
    My Cars
    1997 M3/4/A
    There’s another solution if you are swapping into an e36/z3 chassis

  25. #50
    Join Date
    May 2006
    Location
    Conifer, CO
    Posts
    1,500
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    M5, M Coupe, E70D, LRD2
    Quote Originally Posted by brokeazz View Post
    There’s another solution if you are swapping into an e36/z3 chassis
    What is that solution?

    Sent from my Pixel 4 XL using Tapatalk

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