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-   -   Help, can't shift engine management light!! (https://www.n54tech.com/forums/showthread.php?t=49883)

riddler335i 10-11-2017 11:21 PM

Help, can't shift engine management light!!
 
Hi i have a 2008 335i M sport with DCI & de *** *****. I deleted the exhaust sensor code through the JB4, but every other time i start the car the code re appears ( 2C9E & 2C9F ) . Any ideas what this could be?

Terry @ BMS 10-12-2017 08:30 AM

2C9E AfterCat 02 sensor heater input signal,
Bank 1
2C9F AfterCat 02 sensor heater input signal,
Bank 2

riddler335i 10-12-2017 12:35 PM

Thanks for the reply terry.

These codes have always been stored on the JB4 but it had never through me a warning light until recently i had some diagnostic work done, and now i cant get rid of the light permanently.

Am i right in saying the sensor are removed when de *** ***** are fitted?

Terry @ BMS 10-12-2017 12:52 PM

No, all o2 sensors must be installed for car to operate properly.

riddler335i 10-12-2017 02:14 PM

I recently had the engine taken out to have new turbos fitted wonder if these sensors have been installed again properly.... like i say there was no engine light before the work was done..

Terry @ BMS 10-12-2017 02:15 PM

Something for you to follow up on. Should have no o2 sensor faults stored once car is 100%.


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