Computer diagnostics of the petrol engine M42B18 on BMW E36

ECU Identification

 

M42B18 in E36 chassis with lambda-controlled mixture adaptation for ECE/EC/S/CH/A/USA markets

 

• Coding code: 801e
• Bosch hardware number: 0261200950
• Bosch software number: 1267357108
• BMW hardware number: 1739423
• BMW software number: 001
• Manufacturing code: 265

Stored Fault Codes

 

 12   Throttle position potentiometer

 

 41   Air flow meter fault

 

 70   Lambda sensor fault

 

 

Live Data

 

 67   Engine speed: 880 RPM

 

 92   Ignition advance angle: 11.25° BTDC

 

 17   Fuel injection signal: 3.68 ms

 

 77   Intake air temperature: 39 °C

 

 78   Engine coolant temperature: 102 °C

 

 16   Cylinder recognition (camshaft position sensor): active

 

 12   Throttle position: 0.56 V | idle

 

 

 

 

 94   Air flow meter voltage: 0.155 V

 

 41   Load signal: 1.5 ms

 

 37   Oxygen sensor heater: ON

 

 91   Lambda mixture control: OFF

 

 70   Oxygen sensor voltage: 0.451 V

 

 76   CO adjustment potentiometer (in air flow meter): 1.835 V

 

 

 

 

 89   Power supply: 14.04 V

 

 73   Vehicle speed: 0 km/h

 

 1   Fuel pump relay: activated

 

 27   DME main relay: activated

 

 36   Fuel tank ventilation valve: activated

 

 

 

 

 63   Torque converter lockup clutch: not activated

 

 113   Ignition timing correction: not active

 

 65   Drive position: P/N

 

 81   DWA alarm switch: not activated

 

 85   A/C compressor: OFF

 

 86   Air conditioning: OFF