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E46 M3 (2001-2006)

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Old 03-07-2012, 08:05 PM
edgar620's Avatar
edgar620 edgar620 is offline
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Mein Auto: M3-Imola Red Interior
Throttle Position Sensor Codes

The EML light and check engine light came on today and two codes came up:

P0121 Throttle/Pedal Position Sensor/Switch 'A' Circuit Range/Performance
P0221 Throttle/Pedal Position Sensor/Switch 'B' Circuit Range/Performance

I am trying to figure out if this is one particular sensor or if it could be one of three sensors. When I searched I found three sensors mentioned:

The first near the oil filter, the second under the intake manifold, and the last on the gas pedal.

Do these codes mean it is a specific one of the three or are these the codes that come up when any of the sensors are bad?

I found a few threads that had similar issues but didnt see how the problem was resolved. Before I go buy a sensor, I would like to know if I need to worry about all three or if I can just buy the one that is bad.
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