
2010 BMW M3 4.0L MIL Lamp on, limp home mode
I truly believe the noise in the 5v ref is the key to the problem but I haven't had any luck on finding it. I can send a snapshot of my lab scope waveform in hope that someone will recognize it. It looks like a coil fluctuating/firing being pick up by the ...
Summary posted 1/30/2022
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Message Closed w/Summary
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VIN | WBSWD9C53A |
Engine | 4.0 L / 8 cyl / GAS |
Trans | 7-speed Automatic (Electronic) |
Delivery | Fuel Injection / Multi port fuel injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp on, Limp Home Mode |
Occurs | Intermittently, Intermitted but Most of the Time on Start Up |
Trouble Codes
2771 | DME Upstream oxygen sensor dynamic diagnosis bank 1 |
278D | BSD Bit-serial Data Interface message alternator missing |
2B15 | DME throttle valve actuator governor monitoring bank 1 |
2B21 | DME Throttle valve actuator pre-drive check bank 1 |
2B2D | DMEThrottle valve initialization Bank 2 |
C0DC0 | DME throtle catuator CAN message bank 2 |
Message Closed w/Summary
Vehicle Data
2010 BMW M3
VIN | WBSWD9C53A |
Engine | 4.0 L / 8 cyl / GAS |
Trans | 7-speed Automatic (Electronic) |
Delivery | Fuel Injection / Multi port fuel injection |
Emissions | OBD-II Compliant |
Symptoms | MIL Lamp on, Limp Home Mode |
Occurs | Intermittently, Intermitted but Most of the Time on Start Up |
Trouble Codes
2771 | DME Upstream oxygen sensor dynamic diagnosis bank 1 |
278D | BSD Bit-serial Data Interface message alternator missing |
2B15 | DME throttle valve actuator governor monitoring bank 1 |
2B21 | DME Throttle valve actuator pre-drive check bank 1 |
2B2D | DMEThrottle valve initialization Bank 2 |
C0DC0 | DME throtle catuator CAN message bank 2 |