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2.7e Injection Electronics Block Diagram (1)

Injection Electronics (2.7e / 325e)

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Scroll to zoom · drag to pan · click a wire to trace its circuit · click a part for its pins · J jumps · L labels

Click a wire to trace its circuit, or a part to see its pins and what they connect to.

Parts on this page 19

Wires 34

Wire	Size	From	To
AFM common	0.75 mm²	Motronic Control Unit 6	Air Flowmeter 6
AFM reference	0.75 mm²	Motronic Control Unit 7	Air Flowmeter 7
Air flow	0.75 mm²	Motronic Control Unit 9	Air Flowmeter 9
Air temp	0.75 mm²	Motronic Control Unit 22	Air Flowmeter 22
Aux pump	0.75 mm²	Pump splice (unlabelled) R	Auxiliary Fuel Pump 1
Baro pressure	0.75 mm²	Barometric Pressure Sensor 1	Motronic Control Unit 30
Cold start valve	0.75 mm²	Start splice (unlabelled) R	Cold Start Valve 1
Engine speed	0.75 mm²	Engine Speed Sensor 1	Motronic Control Unit 27
Engine speed	0.75 mm²	Engine Speed Sensor 2	Motronic Control Unit 8
Engine speed to ISC	0.75 mm²	Motronic Control Unit 8	Idle Speed Control Unit 3
Engine temp	0.75 mm²	Coolant Temperature Sensor 1	Motronic Control Unit 13
Engine temp	0.75 mm²	Coolant Temperature Sensor 1	Idle Speed Control Unit 11
FP relay control	0.75 mm²	Fuel Pump Relay 85	Motronic Control Unit 20
Fuel pumps	0.75 mm²	Fuel Pump Relay 87	Pump splice (unlabelled) T
Ground	0.75 mm²	Motronic Control Unit 17	Ground (unlabelled) GND
Ground	0.75 mm²	Motronic Control Unit 16	Ground (unlabelled) GND
Ground	0.75 mm²	Motronic Control Unit 10	Ground (unlabelled) GND
Ground	0.75 mm²	Motronic Control Unit 19	Ground (unlabelled) GND
Ground	0.75 mm²	Motronic Control Unit 5	Ground (unlabelled) GND
ISC speed shield	0.75 mm²	Motronic Control Unit 23	Idle Speed Control Unit SH
Main pump	0.75 mm²	Pump splice (unlabelled) B	Main Fuel Pump 1
O2 heater	0.75 mm²	Oxygen Sensor Heater Relay 30	Oxygen Sensor (heater) 1
O2 heater control	0.75 mm²	Oxygen Sensor Heater Relay 85	Motronic Control Unit 31
O2 relay coil	0.75 mm²	Fuel Pump Relay 87	Oxygen Sensor Heater Relay 86
O2 shield	0.75 mm²	Motronic Control Unit 23	Oxygen Sensor 2
O2 signal	0.75 mm²	Oxygen Sensor 1	Motronic Control Unit 24
Power	0.75 mm²	Main Relay 87	Motronic Control Unit 35
Power	0.75 mm²	Main Relay 87	Motronic Control Unit 18
Ref point	0.75 mm²	Motronic Control Unit 25	Reference Point Sensor 1
Ref point	0.75 mm²	Motronic Control Unit 26	Reference Point Sensor 2
Ref sensor shield	0.75 mm²	Motronic Control Unit 5	Reference Point Sensor 3
Speed sensor shield	0.75 mm²	Motronic Control Unit 23	Engine Speed Sensor 3
Start	0.75 mm²	Ignition Switch 50	Start splice (unlabelled) T
Start input	0.75 mm²	Start splice (unlabelled) B	Motronic Control Unit 4