Engine firing order
1-5-4-8-7-2-6-3 (Pistons Number #1 is the passenger side on the pulley side).
Supported
•Fuel pump (OEM CAN bus).
•BSD Protocol input (oil level, alternator and waterpump control supported).
Not supported (currently)
•E-Throttle bodies (OEM CAN bus), see below.
•Engine FAN (PWM).
•Fuel system (return less system which modulates the fuel pump to maintain the desired fuel pressure).
Crank trigger (VR)
Pin |
Function |
1 |
VR - |
2 |
VR + |
Camshaft connectors (HALL)
Pin |
Function |
1 |
+5V |
2 |
Sensor GND |
3 |
Signal |
Note: Intake #1 (passenger side), Exhaust #2 (Passenger side), Intake #2 (driver side, Exhaust#2 (Driver side).
Ignition coils (needs external amplifiers)
Pin |
Function |
1 |
+12V |
2 |
GND |
3 |
IGN signal |
TPS (one on each engine side)
Throttle position Sensor (1 for each side)
Pin |
Function |
1 |
+5V |
2 |
Sensor GND |
3 |
TPS MAIN |
4 |
TPS BACKUP |
5 |
Sensor GND |
6 |
+5V |
E-Throttle Pedal
Pin |
Function |
1 |
Sensor GND |
2 |
Sensor GND |
3 |
+5V |
4 |
Pedal MAIN |
5 |
+5V |
6 |
Pedal BACKUP |
VANOS solenoids
Pin |
Function |
1 |
+12V |
2 |
GPO (GND) |
Note: BMW specifies 250Hz, we used 200Hz)
E-Throttle motors
Note: OEM they are driven by by CAN messages, currently we do not support this control method, and you need to open up the throttle body and wire directly to the power pins.
Idle motor
Note: OEM the idle motor is controlled over CAN, currently we do not support this control method, and you need to open up the idle control unit and wire to the power pins.
see, MaxxECU download page for a basetune.
