84-85 Turbo 3.8 Liter Engine Sensors
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ECM Harness

1. Electronic Control Module (ECM)
2. Assembly Line Diagnostic Link (ALDL) Connector
3. Service Engine Soon Light
4. ECM +12 Volt Connection
5. ECM Harness Ground
6. Fuse Panel

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Not ECM Connected

7. Fuel Filter
8. Positive Crankcase Ventilation (PCV) Valve
9. N/A
10. Turbocharger

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Controlled Devices

11. Fuel Injectors (6)
12. Idle Air Control (IAC) Motor
13. Fuel Pump Relay
14. Transmission Converter Clutch (TCC) Connector
15. Computer Controlled Coil (C3I) Ignition
16. Electronic Spark Control (ESC) Module
17. Exhaust Gas Recirculation (EGR) Vacuum Solenoid
18. Air Conditioning Compressor Relay
19. Fuel Vapor Canister Solenoid
20. Wastegate Control Solenoid

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Information Sensors

25. Exhaust Oxygen (O2)
26. Throttle Position (TPS)
27. Coolant Temperature
28. Camshaft Position
29. Crankshaft Position
30. Mass Air Flow (MAF)
31. Knock Sensor
32. Transmission Park/Neutral (PN) Switch
33. Vehicle Speed Sensor (VSS)
34. MAP Sensor

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