ENGINE PERFORMANCE – BMW 740i 1993 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

4.0L

4.0L, Electronic Throttle Control Wiring Diagram for BMW 740i 1993

List of elements for 4.0L, Electronic Throttle Control Wiring Diagram for BMW 740i 1993:

• (ads ii)
• (right kick panel)
• Asc throttle position sensor
• Data link connector (partial) (near e-box)
• Electronic throttle control module
• Engine control module (dme) (in e-box)
• Engine control module relay
• Front power distribution box (left side of engine compt.)
• Fuse f60 30a
• Fuse f62 15a
• G303 (below right side of rear seat)
• Hot at all times
• Nca
• Slip control module (abs/asc+t) (in e-box)
• Throttle position motor (left front side of engine compt.)

4.0L, Engine Performance Wiring Diagrams (1 of 3) for BMW 740i 1993

List of elements for 4.0L, Engine Performance Wiring Diagrams (1 of 3) for BMW 740i 1993:

• "check eng" ind
• "check engine" ind
• (behind right front shock tower, in electronics box) engine control relay module
• (behind right front shock tower, in electronics box) transmission control module
• Air ctrl valv closed
• Air ctrl valve open
• Air flow sig
• B+ junction point (behind right front shock tower, in electronics box)
• Camshaft sens gnd
• Camshaft sig
• Climate compres sig
• Com- pressor control relay
• Crankshaft sens gnd
• Crankshaft sig
• Cyl #1 ign sig
• Cyl #2 ign sig
• Cyl #3 ign sig
• Cyl #4 ign sig
• Cyl #5 ign sig
• Cyl #6 ign sig
• Cyl #7 ign sig
• Cyl #8 ign sig
• Cylinders 1-4 ho2s
• Cylinders 5-8 ho2s
• Ecm relay ctrl
• Ecm relay sig
• Electronic throttle control circuit
• Engine control module (behind right front shock tower, in electronics box)
• Engine rpm sig
• Engine speed
• Evap emiss sig
• Evaporative emission valve (left front of engine compt)
• Fuel consum
• Fuel consum sig
• Fuel inj #1
• Fuel inj #2
• Fuel inj #3
• Fuel inj #4
• Fuel inj #5
• Fuel inj #6
• Fuel inj #7
• Fuel inj #8
• Fuel injectors
• Fuel pump relay
• G103 (right rear of engine compartment, above electronics box)
• Gnd
• Ho2s heat sig
• Hot at all times
• Ign sig shield gnd
• Ignition coils (top right side of engine, above respective cylinders)
• Injection sig
• Instrument cluster
• Maf sens gnd
• Mass air flow sensor (left front of engine)
• Nca
• Red
• Shielded
• Slip control module & asc switch
• Spark plug #1
• Spark plug #2
• Spark plug #3
• Spark plug #4
• Speed a-sig
• Speedo output sig
• Throttle flap sens
• Wires
• X16
• X502

4.0L, Engine Performance Wiring Diagrams (2 of 3) for BMW 740i 1993

List of elements for 4.0L, Engine Performance Wiring Diagrams (2 of 3) for BMW 740i 1993:

• (behind right front shock tower, in electronics box) cylinder 1-8 fuel pump relay
• (below luggage compartment) fuel pump/ fuel level sensor
• (right front of engine) camshaft position sensor
• (right rear of engine compartment, above electronics box)
• (top right side of engine) crankshaft position/ rpm sensor
• Electronics box fan
• Engine coolant temperature sensor (right rear of engine)
• Engine intake air temperature sensor (front of engine compt)
• Front power distribution box
• Fuse f23 15a
• G103
• G103 (right rear of engine compartment, above electronics box)
• G303 (below right side of rear seat, right of battery)
• Idle speed control valve
• Ignition coils (top left side of engine, above respective cylinders)
• Nca
• Oil pressure indicator
• Oil pressure switch (left front of engine)
• Red
• Resistor (right rear of engine compartment, in harness channel, near electronics box)
• Shield
• Shielded
• Shielded wires
• Spark plug #5
• Spark plug #6
• Spark plug #7
• Spark plug #8
• Temperature switch (in elec- tronics box)
• Throttle position sensor (front of engine compt)
• Wires

4.0L, Engine Performance Wiring Diagrams (3 of 3) for BMW 740i 1993

List of elements for 4.0L, Engine Performance Wiring Diagrams (3 of 3) for BMW 740i 1993:

• (behind right front shock tower, in electronics box) oxygen sensor relay
• (not used)
• A/c compres sig
• Ac ready sig
• Acc
• Air conditioning relay
• Cly 3-4 knock sens
• Cyl 1-2 knock sens
• Cyl 5-6 knock sens
• Cyl 7-8 knock sens
• Cyl. 1-2
• Cyl. 1-4 heated oxygen sensor (in exhaust pipe)
• Cyl. 3-4
• Cyl. 5-6
• Cyl. 5-8 heated oxygen sensor (in exhaust pipe)
• Cyl. 7-8
• Data link conn
• Data sig
• Datalink connector (partial) (right rear of engine compartment)
• Diagnosis (rxd)
• Diagnosis (txd)
• Drive away protectn
• Egs shield gnd
• Elec thrtl ctrl sig
• Eng cool temp sens
• Engine coasting sig
• Enigine control module (behind right front shock tower, in electronics box)
• Front power distribution box
• Fuse f2 7.5a
• Fuse f28 15a
• G103 right rear of engine compartment, above electronics box)
• Head
• Headlamps & fog lamps
• Headlights on sig
• Hot at all times
• Hot in run or start
• Ignition switch
• Intake air temp sens
• Knock sens gnd
• Knock sensors (top of engine)
• Light switch
• Nca
• Normal speed relay & pressure switch (a/c system)
• Off
• On board computer (right side of radio)
• On-brd comp sig
• Park
• Red
• Run
• Shield
• Slip control module (in electronics box)
• Start
• Throttle pos sens
• Traction ctrl reg sig
• Transmission control module (in electronics box)