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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > code 10703 on Canbus procede?



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      08-09-2009, 06:56 PM   #1
fotios335i
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Exclamation code 10703 on Canbus procede?

Does anyone know what this code means? 10703 on procede and it showed up as a ses light. Its not in the code chart. Any help would be appreciated...thanks
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      08-09-2009, 07:06 PM   #2
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10703 converted to hex is 29CF. And 29CF is the hex code or Misfire Cylinder 3.

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      08-09-2009, 10:41 PM   #3
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Thanks shiv, I appreciate it. Time to take it out I guess and go to dealer. definitely feel the misfire.
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      08-10-2009, 02:55 AM   #4
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Quote:
Originally Posted by fotios335i View Post
Thanks shiv, I appreciate it. Time to take it out I guess and go to dealer. definitely feel the misfire.
Why not just change the plugs?

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      08-10-2009, 10:28 AM   #5
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Quote:
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Why not just change the plugs?

Shiv
think that would take care of it? last time they replaced a coil and injector. Id rather just swap the plugs myself.
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      08-10-2009, 11:21 AM   #6
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think that would take care of it? last time they replaced a coil and injector. Id rather just swap the plugs myself.
Yes, that is far more likely to fix it. Especially if your plugs are oldish (10k+ miles). Spark plug replacements should be done, IMHO, every 10-15k miles in cars running a >14psi tune.

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      08-29-2009, 09:34 AM   #7
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problem went away for a while and has now come back. Time to get the tool and get this done...anyone else throw this code and changed plugs? If so did it completely take care of the issue?
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      08-29-2009, 02:58 PM   #8
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I changed my plugs at just under 10k

Car would misfire in 6 and would idle harshly. Changed the plugs and no longer have any problems.
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      08-29-2009, 03:05 PM   #9
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are you guys mostly just using the stock plugs? I never really found for sure if improved (like NGK?) came out...
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      08-29-2009, 05:39 PM   #10
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do the plugs come gaped already?
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