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Throttle mystery

Discussion in 'E81/E82/E87/E88 (2004-present)' started by prof911sc, Aug 1, 2013.

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    I have a 2013 135is with a throttle (Drive-by-wire) problem. The car has about 4,000 miles, all mine. When approaching a stop, the engine may be turning at about 2,500 to 3,000 rpm, I depress the clutch and the engine rpms do not drop. With the clutch in, or shifting to neutral, the rpms stay at 2,500 - 3,000 for either 3-4 seconds or until I stab the accelerator pedal. Then the engine will begin to drop back idle. Of course, this is a ghostly intermittent problem, made worse when the engine is at operating temperature.

    So far, the only fix that the dealer has tried is to update the “throttle mapping” software. Something tells me that this has to be a sensor somewhere.

    Any thoughts or suggestions?

    Prof911sc in Denver

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