Computer diagnostics of the M70B50 engine, DME 1.7 on BMW E31

ECU Identification

 

DME M1.7 of the M70B50 engine with lambda-controlled mixture adaptation, manual transmission version for US/EU/Japan market

 

• Coding code: c052
• Bosch hardware number: 0261200352
• Bosch software number: 1267356537
• BMW hardware number: 1736370
• BMW software number: 001
• Manufacturing code: 069

 

 

Stored Fault Codes

 

No faults stored!

 

 

Live Data

 

 67   Engine speed: 680 RPM

 

 17   Injection signal: 4.63 ms

 

 41   Load signal: 2.15 ms

 

 92   Ignition advance angle: 10° BTDC

 

 77   Intake air temperature: 35.8 °C

 

 78   Engine temperature: 75.3 °C

 

 89   Power supply voltage: 13.89 V

 

 

 

 

 37   Lambda sensor heater: ON

 

 70   Lambda sensor voltage: 0.180 V

 

 91   Lambda mixture control: active

 

 16   Cylinder recognition: active

 

 

 

 

 36   Fuel tank ventilation: OFF

 

 76   CO potentiometer voltage: 1.406 V

 

 62   Idle signal from EML: activated

 

 12   Full load signal from EML: not activated

 

 73   Vehicle speed: 0 km/h

 

 

 

 

 1   Fuel pump relay: activated

 

 63   Torque converter lockup clutch: activated

 

 64   Ignition timing intervention: inactive

 

 65   Transmission selector position P/N: R,I-D

 

 81   DWA/ASC signal: not activated

 

 82   MSR signal: not activated

 

 

 

 

 109   Idle mixture adaptation (via lambda): 32

 

 110   Partial load mixture adaptation (via lambda): 0