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Electrical Connectors: Difference between revisions
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Revision as of 11:00, 18 February 2021
Here is an overview of connectors used in the engine harness or aftermarket upgrades.
Feel free to add partnumbers if you find them useful.
Sensor Connectors
BMW M54 MAF Sensor (MS43)
3-pin Junior Mini Timer 2.8mm
Plug: 12521427222 (BMW)
Pin: 12521427612
Cover: 12521707749
| Pin 1 | M_HFM (Sensor Ground) |
|---|---|
| Pin 2 | A_HFM (MAF Signal Output) |
| Pin 3 | U_HR (+12V Voltage Input) |
BMW M54 MAF Sensor (MS45)
Plug: 12527512935 (BMW) (Sealing grommet to go with the plug is part # 61138366245)
Pin: 12527545852
| Pin 1 | +5V Voltage Input? |
|---|---|
| Pin 2 | +12V Voltage Input? |
| Pin 3 | A_HFM (MAF Signal Output) |
| Pin 4 | Unused |
| Pin 5 | M_HFM (Sensor Ground) |
| Pin 6 | IAT Sensor Output |
BMW B58 TMAP Sensor (13628637900)
Plug: 18302411427 (BMW) (8 509 441-02)
AliExpress: 7549032-02
| Pin 1 | A_TNDK (Temperature Signal After Throttlebody) |
|---|---|
| Pin 2 | U_5V_2 (Sensor Supply Voltage +5V) |
| Pin 3 | M_PNDK (Sensor Ground) |
| Pin 4 | A_PNDK (Absolute Pressure Signal After Throttlebody) |
Audi RS4 (B5) MAF Sensor (0280218067)
Also matches S4 B5 MAF sensor
- Plug: 1J0973775A (VAG)
- Socket: 1J0973824 (VAG)
| Pin 1 | IAT Sensor Output |
|---|---|
| Pin 2 | +12V Input Voltage |
| Pin 3 | Common Ground |
| Pin 4 | +5V Input Voltage |
| Pin 5 | MAF Sensor Output |
Bosch MAP Sensor 20-300kPa (0261230119)
3-pin Bosch Compact 1.1a 2.8mm
- Plug: Bosch 1928403966
- Pin: Bosch 1928498056
- Cover: Bosch 12521707749
| Pin 1 | +5V Voltage Input |
|---|---|
| Pin 2 | Ground |
| Pin 3 | Signal Output |
Mercedes M275 MAP Sensor (Bosch 0261230191)
Alternative Part Number: 0051537228
- Plug: BMW 61132359998 / TE 1-968402-1
| Pin 1 | +5V Voltage Input |
|---|---|
| Pin 2 | Signal Output |
| Pin 3 | Ground |
Throttle Body Connectors
BMW M54 Throttle Body
Plug: 1J0973713 (VAG) / 12527505669 (BMW)
Socket: 3B0973813 (VAG)
| Pin 1 | A_DKG1 (Potentiometer 1) |
|---|---|
| Pin 2 | U_DKG (Sensor Supply Voltage +5V) |
| Pin 3 | T_MDK1 (Actuator 1) |
| Pin 4 | A_DKG2 (Potentiometer 2) |
| Pin 5 | T_MDK2 (Actuator 1) |
| Pin 6 | M_DKG (Sensor Ground) |
BMW B58 Throttle Body (13548623324)
The B58 throttle body adapts perfectly to MS43 and can therefore be used on a B58 manifold that has been adapted for use on an M5X engine.
Plug: 12527635615 (BMW)
Pins: 61138600419 (BMW)
| Pin 1 | T_MDK1 (Actuator 1) |
|---|---|
| Pin 2 | T_MDK2 (Actuator 2) |
| Pin 3 | A_DKG1 (Hall Sensor 1) |
| Pin 4 | M_DKG (Sensor Ground) |
| Pin 5 | U_5V_1 (Sensor Supply Voltage +5V) |
| Pin 6 | A_DKG2 (Hall Sensor 2) |
