ENGINE PERFORMANCE – BMW 525i 1993 – SYSTEM WIRING DIAGRAMS

ENGINE PERFORMANCE

2.5L

2.5L, Engine Performance Wiring Diagrams (1 of 2) for BMW 525i 1993

List of elements for 2.5L, Engine Performance Wiring Diagrams (1 of 2) for BMW 525i 1993:

• (top right side of engine)
• 15a
• 5v ref
• 87a
• A/c comp ctrl
• Acc
• B+ junction point
• Battery
• Camshaft act
• Camshaft actuator (front of engine)
• Camshft sens
• Crank rpm (-)
• Crank rpm td
• Crnkshft sens
• Cyl 1 ign coil
• Cyl 2 ign coil
• Cyl 3 ign coil
• Cyl 4 ign coil
• Cyl 5 ign coil
• Cyl 6 ign coil
• Cylinder 1
• Cylinder 2
• Cylinder 3
• Cylinder 4
• Cylinder 5
• Cylinder 6
• Ecm rly ctrl
• Engine control module (dme) (rear right side of engine compt in e-box)
• Engine control module relay
• Evap ctrl
• Evaporative emission valve (right of left side shock tower)
• Fp rly ctrl
• Front power distribution box
• Fuel cons
• Fuel injector valves
• Fuel pump relay
• Fuse 23
• G120 (at front of engine)
• Ground
• Hfam meter
• Ho2s ground
• Ho2s rly ctrl
• Ho2s sig
• Hot at all times
• Idle speed control valve (near oil level stick)
• Ign timing
• Ignition coil
• Ignition switch
• Inj 1
• Inj 2
• Inj 3
• Inj 4
• Inj 5
• Inj 6
• Isc ctrl
• Mil ind ctrl
• Nca
• Off
• Red
• Run
• Start
• Tps
• Vss td

2.5L, Engine Performance Wiring Diagrams (2 of 2) for BMW 525i 1993

List of elements for 2.5L, Engine Performance Wiring Diagrams (2 of 2) for BMW 525i 1993:

• (near battery)
• (not used)
• A/c press
• A/c sw
• A/c system
• A/t
• Automatic transmission range switch
• Camshaft position sensor (rear of radiator)
• Cyl 1-3 knock sensor (top front of engine)
• Cyl 1-3 ks
• Cyl 4-6 knock sensor (top front of engine)
• Cyl 4-6 ks
• Data link connector (front of battery)
• Drive-away sig
• Ect sens
• Eiat sens
• Engine control module (dme) (rear right side of engine compt in e-box)
• Engine coolant temperature sensor (right front of engine)
• Engine intake air temperature sensor (near oil level stick)
• Front power distri- bution box
• Front power distribution box
• Fuel pump (below right side of rear seat)
• Fuse 7.5a
• G120
• G125 (front of engine)
• G303 (below right rear seat)
• Gn/vi
• Ground
• Hall effect camshaft sensor (front of engine)
• Heated oxygen sensor (under center of car)
• Hot film air mass meter (top front of engine)
• Hot in run and start
• Instrument cluster
• M/t
• Malfunction indicator (check engine)
• Nca
• On-board computer
• On-board computer, instrument cluster
• Oxygen sensor relay
• P/n input
• Program volt
• Red
• Rxd data
• Throttle position sensor (left side of engine)
• Tps
• Transmission control module (egs) (rear right side of engine compt, in e-box)
• Txd data
• Vehicle speed output
• X16
• X502
• X511