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2.5i Injection Electronics (Injectors / Sensors)

Injection Electronics (2.5i / 325i)

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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 27

Wires 47

Wire	Size	From	To
A/C input	1.0 mm²	A/C Compressor Controls 1	C136 1
A/C input	0.5 mm²	C136 1	Motronic Control Unit 41
CID	0.5 mm²	Motronic Control Unit 8	Cylinder ID connector 1
CID	0.5 mm²	Cylinder ID connector 1	Cylinder Identification Sensor 1
CID	0.5 mm²	Motronic Control Unit 31	Cylinder ID connector 2
CID	0.5 mm²	Cylinder ID connector 2	Cylinder Identification Sensor 2
CID shield	0.75 mm²	S700 L	Cylinder ID connector 3
CID shield	0.75 mm²	Cylinder ID connector 3	Cylinder Identification Sensor 3
ECU ground	1.5 mm²	Motronic Control Unit 19	S700 T
Engine speed	0.5 mm²	Motronic Control Unit 48	Engine speed connector 2
Engine speed	0.5 mm²	Engine speed connector 2	Engine Speed Sensor 2
Engine speed	0.5 mm²	Motronic Control Unit 47	Engine speed connector 1
Engine speed	0.5 mm²	Engine speed connector 1	Engine Speed Sensor 1
Ground	4.0 mm²	S111 B	G103 GND
Ground	1.5 mm²	S700 B	G103 GND
Ground distribution	1.5 mm²	Ground Distribution 1	S111 L
Idle actuator +	1.0 mm²	S112 T	Idle Speed Actuator 1
Idle control	1.0 mm²	Idle Speed Actuator 2	Motronic Control Unit 4
Idle control	1.0 mm²	Idle Speed Actuator 3	Motronic Control Unit 22
Injection 12V	4.0 mm²	From Main Relay (link E) E	S112 L
Injector 1	0.5 mm²	Fuel Injector No. 1 2	S104 T
Injector 1 +	0.5 mm²	S112 B	Fuel Injector No. 1 1
Injector 2	0.5 mm²	Fuel Injector No. 2 2	S106 T
Injector 2 +	0.5 mm²	S112 B	Fuel Injector No. 2 1
Injector 3	0.5 mm²	Fuel Injector No. 3 2	S104 T
Injector 3 +	0.5 mm²	S112 B	Fuel Injector No. 3 1
Injector 4	0.5 mm²	Fuel Injector No. 4 2	S106 T
Injector 4 +	0.5 mm²	S112 B	Fuel Injector No. 4 1
Injector 5	0.5 mm²	Fuel Injector No. 5 2	S104 T
Injector 5 +	0.5 mm²	S112 B	Fuel Injector No. 5 1
Injector 6	0.5 mm²	Fuel Injector No. 6 2	S106 T
Injector 6 +	0.5 mm²	S112 B	Fuel Injector No. 6 1
Injectors 1,3,5	1.5 mm²	S104 B	Motronic Control Unit 16
Injectors 2,4,6	1.5 mm²	S106 B	Motronic Control Unit 17
O2 heater +	1.0 mm²	From Oxygen Sensor Relay (link G) G	C140 4
O2 heater +	0.75 mm²	C140 4	Oxygen Sensor 4
O2 heater ground	0.75 mm²	Oxygen Sensor 3	C140 3
O2 heater ground	1.0 mm²	C140 3	S111 T
O2 sensor	1.0 mm²	Motronic Control Unit 10	C140 1
O2 sensor	0.75 mm²	C140 1	Oxygen Sensor 1
O2 sensor	1.0 mm²	Motronic Control Unit 28	C140 2
O2 sensor	0.75 mm²	C140 2	Oxygen Sensor 2
O2 shield	0.75 mm²	S700 L	C140 1
Purge control	0.5 mm²	Evaporative Purge Valve 2	Motronic Control Unit 5
Purge valve +	0.5 mm²	S112 R	Evaporative Purge Valve 1
Speed shield	0.75 mm²	S700 R	Engine speed connector 3
Speed shield	0.75 mm²	Engine speed connector 3	Engine Speed Sensor 3