Air/Fuel gauge Connection
1. Remove the driver's side access panel from the center console. There is one Phillips screw and one
push-in plastic screw that holds the access panel on.
2. There are four plastic connectors plugged into the ECU, directing a myriad of wires going to and returning
from the control sensors and relays. Connector 1 has 26 terminals, connector 2 has 16 terminals, connector 3 has 12 terminals, and connector 4 has 22 terminals. The terminal numbers are shown below. (Look at the ECU with your head under the steering column, with your left ear pointing to the floor. The connectors are from left to right, connectors 1, 2, 3, and 4.)
2G Turbo DSM ECU Terminal Numbers
Connector 1
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25 26
Connector 2
31 32 33 34 35 36 37 38
39 40 41 42 43 44 45 46
Connector 3
51 52 53 54 55 56
57 58 59 60 61 62
Connector 4
71 72 73 74 75 76 77 78 79 80 81
82 83 84 85 86 87 88 89 90 91 92
4. The hot wire to power up the A/F gage should be teed onto the ECU power supply wire at terminal number 25.
The ground wire for the A/F gage should be teed onto the ECU ground wire at terminal number 92. The air-fuel signal wire for the A/F gage should be teed onto the front O2 sensor return signal wire at terminal number 76.
5. Replace the access panel on the center console. You're done! Happy boosting!
1. Remove the driver's side access panel from the center console. There is one Phillips screw and one
push-in plastic screw that holds the access panel on.
2. There are four plastic connectors plugged into the ECU, directing a myriad of wires going to and returning
from the control sensors and relays. Connector 1 has 26 terminals, connector 2 has 16 terminals, connector 3 has 12 terminals, and connector 4 has 22 terminals. The terminal numbers are shown below. (Look at the ECU with your head under the steering column, with your left ear pointing to the floor. The connectors are from left to right, connectors 1, 2, 3, and 4.)
2G Turbo DSM ECU Terminal Numbers
Connector 1
1 2 3 4 5 6 7 8 9 10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25 26
Connector 2
31 32 33 34 35 36 37 38
39 40 41 42 43 44 45 46
Connector 3
51 52 53 54 55 56
57 58 59 60 61 62
Connector 4
71 72 73 74 75 76 77 78 79 80 81
82 83 84 85 86 87 88 89 90 91 92
4. The hot wire to power up the A/F gage should be teed onto the ECU power supply wire at terminal number 25.
The ground wire for the A/F gage should be teed onto the ECU ground wire at terminal number 92. The air-fuel signal wire for the A/F gage should be teed onto the front O2 sensor return signal wire at terminal number 76.
5. Replace the access panel on the center console. You're done! Happy boosting!
