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Thread: Code 1235/2235

  1. #1
    Join Date
    Mar 2013
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    1993 850CI

    Code 1235/2235

    ok guys, searched for the code 1235/2235 but i cant find any. was n a stop light. rev the car a lilbit to 5rpm then went back to idle. (ac was on). then green light. after 3 sec of moving foward my orange check ligjt went on and the computer says trans safe fail... lucky was 20 feet away from walmart parking light. parkd the car and shut the engine off. trned it on for a stomp code, the code was 1235/2235. opened the hood, no leak or fluid popping out. went back trned the engine on and thetrans safe fail and orange check disappeared. car was back to normal.... no odd smell during the trans safe fail. all I notice is very low power and was running 20-30mpg whch is common when trans safe fail is engaged... any idea was the code all about?

    also fuel gauge dropped down a quite few after.
    thanks
    daryl
    Last edited by chinito03; 05-29-2013 at 05:41 PM.

  2. #2
    Join Date
    Apr 2011
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    The OC, CA
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    95 840Ci, 00 740i Sport
    I had these codes also. In some obscure reference it points to lamba or some secondary ignition, something like that. I was able to shut the car off and it reset and would drive normal for a while till it did it again. I ended up replacing the O2 Sensors and one of the MAF's. Not sure which one fixed it, but that is exactly what mine was doing.

  3. #3
    Join Date
    Mar 2013
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    1993 850CI
    Cleaned two of my MAFs using maf cleaner... Might change my o2 sensor and plugs once I get a spare time..
    thanks..

  4. #4
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    1993 850CI
    update. cleaned the MAFs lastnigh and cleared the stomp code.. drove the car about 100 miles.... car drives fine and mpg back to normal. no more code from stomp test and peak reader. no trans safe fail. well see if the trans safe.fail will engage again since this is my daily car going to work.
    thanks
    daryl

  5. #5
    Join Date
    Jan 2005
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    Laurel, MD
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    I miss my E31!!!!!!!!!!

  6. #6
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    Quote Originally Posted by Ahmed303 View Post
    Test it over 80 MPH.
    was doing 85 to 90 mph. lucky no cops...

  7. #7
    Join Date
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    I miss my E31!!!!!!!!!!
    Quote Originally Posted by chinito03 View Post
    was doing 85 to 90 mph. lucky no cops...
    I am in Montana now and just drove from Billings to Lame Deer (2 hour drive southwest). 75 MPH limit with no cops anywhere. I wish I had my 8 with me.

  8. #8
    Join Date
    Mar 2013
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    South TEXAS
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    1993 850CI
    i did another 40 miles drive 75-80 this morning going to work... so far so good.. i guess cleaning the MAFs did it.. =)
    Next would be rebuilding my charcoal canister since i could smell gas fumes from the canister itself...
    thanks
    Daryl

  9. #9
    Join Date
    Jan 2017
    Location
    The Netherlands
    Posts
    37
    My Cars
    850i
    Update for future forum searches: stomp fault codes 1235 and 2235 indicate DME error 63 "Converter lockup clutch", probably caused by the automatic transmission in Failsafe mode.

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