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Thread: corrections to secret OBC codes

  1. #1
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    Default corrections to secret OBC codes

    http://home.iae.nl/users/bts/obc.htm

    Kai from the German E34 board informed that these are not correct:

    1. #06 is not "Amps", it's the measured current fuel in tank (in litres). Works only if ignition is on.

    2. #07 is not "% of full", it's the calculated (!!) current fuel in tank.

    3. #09 is the current voltage at terminal 15 (not terminal R!), so you have to turn the ignition on.

    4. #10 has absolutely nothing to do with something like speedometer correction, it's for the range calibration.

  2. #2
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    range calibration!

    i need that bad, it says i have like, 580miles after a fillup, but..... thats just not possible unless im getting almost 30mpg ALL THE TIME!
    Alusil, Dinan DME | ITG Air Filter | Eibach/Bilstein HD | 26/20 Swaybars | Iridium plugs | Depo/ProLumen HID | Optima batt. | no AC | Stoptech brake lines, Frozen rotors, brass bushings, Superblue

  3. #3
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    Los Angeles, near Torrance
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    Default

    Thanks for the link!

  4. #4
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    Default

    Thanks for all the info.

    My 540 will not respond to a "stomp test."

    Is there another way for me to find out why my check engine light keeps coming and going?

    Cheers,
    Evan
    1994 540ia|Oxford Green Metallic|Lemforder|KYB in H&R|18" OE Staggered M-Parallel with Pirelli P-Zero

  5. #5
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    Sydney, Australia
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    WOW, Built in speedo calibration!!!

    I never knew one could use it to calibrate the speedo.

    Does anyone have non-stock sized wheels on their e34??? Have I been missing something???? Why don't we rant and rave about this?

    Join the Aussie
    540i LE yahoo forum

    08/88 535i e34 M30+miller MAF, 'stiens, tints & teeth!

  6. #6
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    South Africa
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    Default

    Quote Originally Posted by shogun
    http://home.iae.nl/users/bts/obc.htm

    4. #10 has absolutely nothing to do with something like speedometer correction, it's for the range calibration.
    Heya Shogun ... so you're saying we cannot calibrate our speedo? Damn I wish I could do that, but thanks for the codes and corrections. Good info!

  7. #7
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    Quote Originally Posted by genphreak
    WOW, Built in speedo calibration!! Have I been missing something???? Why don't we rant and rave about this?
    Cos someone dosen't read posts proeprly i guess. Doh!

    I'll have to try this function out so will let you know Erich. Nick

    Join the Aussie
    540i LE yahoo forum

    08/88 535i e34 M30+miller MAF, 'stiens, tints & teeth!

  8. #8
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    Quote Originally Posted by shogun
    http://home.iae.nl/users/bts/obc.htm

    Kai from the German E34 board informed that these are not correct:

    1. #06 is not "Amps", it's the measured current fuel in tank (in litres). Works only if ignition is on.

    2. #07 is not "% of full", it's the calculated (!!) current fuel in tank.

    3. #09 is the current voltage at terminal 15 (not terminal R!), so you have to turn the ignition on.

    4. #10 has absolutely nothing to do with something like speedometer correction, it's for the range calibration.
    Can we "program" these new codes into our dash display to bring 'em up when we press the turn indicator stalk - so that they're always available? Just too lazy to try, so thought I'd ask.

  9. #9
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    Jan 2005
    Location
    Melbourne Australia
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    Quote Originally Posted by Evan
    Thanks for all the info.

    My 540 will not respond to a "stomp test."

    Is there another way for me to find out why my check engine light keeps coming and going?

    Cheers,
    Evan
    Same Problem with the check engine and stomp test.

    "Bump"
    1994 540i Auto

    live fast; die sideways
    13.3 @ 104mph (not in the 540)
    15.4 @ 150 Kph in the 540 (24/9/07)

  10. #10
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    Australian cars do not have a possibility for a stomp test, only U.S. specification cars.
    But you can do that by adding some wires. I have once posted that.
    MOTRONIC to cluster and installing the bulb in the cluster. Wiring depends on the MOTRONIC, and not all years of production possible.
    I only have the details for the M70 V12 MOTRONIC.

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