1995-1999 Mitsubishi Eclipse and Eagle Talon Turbo 
DSM ECU Pinouts
Pi
     Connection                             Pin   Connection
n
1    No. 1 Injector                         14    No. 2 Injector
2    No. 3 Injector                         15    No. 4 Injector
3    Fuel pressure solenoid                 16    Boost meter
     Idle Speed Control (ISC) motor coil
4                                           17    ISC motor coil (A2)
     (A1)
5    ISC motor coil (B1)                    18    ISC motor coil (B2)
6    EGR Solenoid                           19    Volume air flow sensor reset signal
     Engine/transaxle general control
7                                           20    Cooling fan motor relay (high)
     torque reduction request signal 1
8    Fuel pump relay                        21    Cooling fan motor relay (low)
9    Evaporate emission purge solenoid      22    AC compressor clutch relay
     Ignition power transistor (A – to            Ignition power transistor (B – to
10                                          23
     coil for cyl 1&4)                            coil for cyl 2&3)
11   Turbo wastegate solenoid               24
12   Power supply                           25    Power supply
13   Power supply                           26
Pi
     Connection                             Pin   Connection
n
31                                          39
32                                          40
33   Generator G terminal                   41    Generator FR terminal
34                                          42    AC intermediate pressure switch
                                                  Engine/transaxle general control
35                                          43
                                                  torque reduction request signal 2
36   Check Engine light                     44
37   Power steering pressure switch         45    AC switch
                                                  Engine/transaxle general control
38   MFI relay (power supply)               46
                                                  torque execution signal
Pi
     Connection                             Pin   Connection
n
51                                          57
52                                          58    Engine ignition signal
53                                          59
54   O2 sensor heater (rear)                60    O2 sensor heater (front)
55                                          61
56                                          62
Pi
     Connection                             Pin   Connection
n
71   Ignition switch – ST                   82
72   Intake air temp sensor                 83    Coolant temp sensor
     Manifold differential pressure
73                                          84    Throttle position sensor
     sensor
74                                          85    Barometric pressure sensor
75   O2 sensor (rear)                       86    Vehicle speed sensor
                                                  Closed throttle position switch (Idle
76   O2 sensor (front)                      87
                                                  switch)
77                                          88    Camshaft position sensor
78                                          89    Crankshaft position sensor
79                                          90    Volume air flow sensor
80   Backup power supply                    91    Park/Neutral position switch (used
                                     on ATs only)
81   Sensor impressed voltage   92   Ignition switch – IG