Engine Electronics (ME-SFI) Fuel Injection and Ignition System Function Diagram
Engine Electronics (ME-SFI) Fuel Injection And Ignition System Function Diagram
Engine 120.982/983 (USA)
40 Diaphragm pressure regulator
55 Fuel filter
74 Fuel cooler
75 Fuel tank
77 Activated charcoal filter
125 Air pump
126 Left air shutoff valve
126a Right air shutoff valve
127 Check valve (injected air)
128 Check valve (vacuum)
158 Catalytic converter
A1e26 CHECK ENGINE indicator lamp
A1e43 EPC malfunction indicator lamp (up to 5/96)
A29 Left knock sensors
A30 Right knock sensors
B2/6 Left hot film mass air flow sensor, positioned on right of engine
B2/7 Right hot film mass air flow sensor, positioned on left of engine
B4/3 Model 140, model 129 as of 9/97: fuel tank pressure sensor
B4/4 Model 129 up to 8/97: purge control monitoring pressure sensor
B6/2 Left camshaft Hall sensor
B6/3 Right camshaft Hall sensor
B11/9 Left coolant temperature sensor
B11/10 Right coolant temperature sensor
B17/5 Left intake air temperature sensor, positioned on right of engine
B17/6 Right intake air temperature sensor, positioned on left of engine
B24/7 Body acceleration sensor (up to 5/96)
B28/1 Left intake manifold pressure sensor
B28/2 Right intake manifold pressure sensor
B37 Pedal value sensor
G3/3 Left O2 sensor upstream of TWC
G3/4 Right O2 sensor upstream of TWC
G3/5 Left O2 sensor downstream of TWC
G3/6 Right O2 sensor downstream of TWC
K17 Secondary air injection relay
K27 Fuel pump relay
L5/4 Left crankshaft position sensor
L5/5 Right crankshaft position sensor
M3 Fuel pump
M16/3 Right electronic accelerator (EA)/ cruise control (CC)/idle speed control (ISC) actuator, positioned on left of engine
M16/4 Left electronic accelerator (EA)/ cruise control (CC)/idle speed control (ISC) actuator, positioned on right of engine
N3/11 Left ME-SFI control module
N3/12 Right ME-SFI control module
N15/3 ETC (electronic transmission control) control module
N22 Automatic air conditioning (Auto A/C) pushbutton control module
N47-5 ESP/SPS control module
N54 RCL (remote central locking) control module
S9/1 Stop lamp switch
S40 Cruise control switch
S43 Oil level switch
T1/1-12 Ignition coils cylinders 1 - 12
X11/4 Data link connector, 38-pin
X11/22 Data link connector II
Y32 Air pump switchover valve
Y33 Air pump electromagnetic clutch
Y49/1 Left adjustable camshaft timing solenoid
Y49/2 Right adjustable camshaft timing solenoid
Y58/2 Left purge control valve, positioned in right of engine compartment
Y58/3 Right purge control valve, positioned in left of engine compartment
Y58/4 Model 140, model 129 as of 9/97: activated charcoal filter shutoff valve
Y63 Left fuel injectors
Y64 Right fuel injectors
CAN Data bus (Controller Area Network)
V Decelerate/Set
B Accelerate/Set
SP Resume
A Off
Note: Model 129 as of 9/97 with leak test for purge control system (purge control system operational check discontinued)