Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Connector Identification
Harness connector terminal identification illustrations are generic and categorized by number of terminals. For terminal identification of connectors with 1 or 2 terminals, see WIRING DIAGRAMS article. All connector views are terminal side unless otherwise specified. For harness connector terminal identification, see HARNESS CONNECTOR IDENTIFICATION DIRECTORY.
| Description | See | |||
|---|---|---|---|---|
| Millenia (2.3L) | ||||
| Camshaft Position Sensor | Fig 5 | |||
| Crankshaft Position Sensor | Fig 2 | |||
| EGR Valve Position Sensor | Fig 1 | |||
| Fuel Gauge Sending Unit | Fig 1 | |||
| Fuel Tank Pressure Sensor | Fig 1 | |||
| Left Front Heated Oxygen Sensor | Fig 1 | |||
| Left Rear Heated Oxygen Sensor | Fig 2 | |||
| Intake Air Temperature Sensor | Fig 6 | |||
| Manifold Absolute Pressure Sensor | Fig 1 | |||
| Mass Air Flow Sensor | Fig 1 | |||
| Powertrain Control Module (1) | Fig 10 | |||
| Right Front Heated Oxygen Sensor | Fig 2 | |||
| Right Rear Heated Oxygen Sensor | Fig 4 | |||
| Throttle Position Sensor | Fig 5 | |||
| Transmission Control Module | Fig 11 | |||
| Millenia (2.5L) | ||||
| Crankshaft Position Sensor | Fig 2 | |||
| Distributor | Fig 6 | |||
| EGR Boost Sensor | Fig 2 | |||
| EGR Valve Position Sensor | Fig 1 | |||
| Fuel Gauge Sending Unit | Fig 1 | |||
| Fuel Tank Pressure Sensor | Fig 1 | |||
| Left Front Heated Oxygen Sensor | Fig 4 | |||
| Mass Air Flow Sensor | Fig 1 | |||
| Middle Heated Oxygen Sensor | Fig 3 | |||
| Powertrain Control Module (1) | Fig 10 | |||
| Rear Heated Oxygen Sensor | Fig 3 | |||
| Right Front Heated Oxygen Sensor | Fig 4 | |||
| Throttle Position Sensor | Fig 5 | |||
| MPV | ||||
| Distributor | Fig 7 | |||
| Front Heated Oxygen Sensor | Fig 3 | |||
| Fuel Gauge Sending Unit | Fig 5 | |||
| Fuel Tank Pressure Sensor | Fig 1 | |||
| Intake Air Temperature Sensor | Fig 6 | |||
| Mass Air Flow Sensor | Fig 6 | |||
| Powertrain Control Module (1) | Fig 9 | |||
| Rear Heated Oxygen Sensor | Fig 3 | |||
| Throttle Position Sensor | Fig 5 | |||
| Transmission Control Module | Fig 11 | |||
| Protege (1.5L) | ||||
| Crankshaft Position Sensor | Fig 2 | |||
| Distributor (CA) | Fig 6 | |||
| Distributor (Fed) | Fig 8 | |||
| EGR Boost Sensor | Fig 1 | |||
| Fuel Tank Pressure Sensor | Fig 1 | |||
| Front Heated Oxygen Sensor | Fig 2 | |||
| Mass Air Flow Sensor | Fig 1 | |||
| Powertrain Control Module (1) | Fig 9 | |||
| Rear Heated Oxygen Sensor | Fig 4 | |||
| Throttle Position Sensor | Fig 2 | |||
| Protege (1.8L) | ||||
| Crankshaft Position Sensor | Fig 2 | |||
| Distributor | Fig 9 | |||
| EGR Boost Sensor | Fig 2 | |||
| Fuel Tank Pressure Sensor | Fig 2 | |||
| Front Heated Oxygen Sensor | Fig 5 | |||
| Mass Air Flow Sensor | Fig 7 | |||
| Powertrain Control Module (1) | Fig 10 | |||
| Rear Heated Oxygen Sensor | Fig 3 | |||
| Throttle Position Sensor | Fig 1 | |||
|
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.
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