Section 7 (Engine Controls - System/Component Tests)
WARNING: This page does not describe the selected car, but rather 35 other vehicles, including the 1990 Pontiac Sunbird, 1990 Pontiac Grand Prix, 1990 Pontiac Grand Am, 1990 Pontiac Firebird, and 1990 Pontiac Bonneville. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Air Induction Systems (Turbochargers)
- Engine Sensors & Switches
- A/C On Switch System Test
- A/C Pressure Sensor (2.3L & 3.1L J Body)
- A/C Pressure Switch
- Brake Switch
- Camshaft Sensor (3.8L VIN C)
- Coolant Level Sensor/Coolant Level Light
- Coolant Temperature Sensor (Cts)
- Crankshaft Position Sensor (2.3L IDI)
- Crankshaft Position Sensor (Dis)
- Dual Crank (Combination) Sensor (3.3L C(3)I System)
- EGR Position Sensor
- Engine Oil Temperature Sensor (5.7L VIN 8)
- Knock Sensor
- Camshaft Sensor/Hall Effect Switch (CADILLAC Except Brougham)
- Manifold Absolute Pressure (Map) Sensor
- Manifold Air Temperature (Mat) Sensor
- Mass Airflow Sensor
- Oxygen Sensor (O2)
- P/N Switch
- Power Steering Pressure Switch (PSPS)
- Pressure/BARO Sensor CARBURETED 5.0L (VIN Y)
- Throttle Position Sensor (TPS)
- Vehicle Speed Sensor (Pm Generator Type)
- Vehicle Speed Sensor (Led Type)
- Relays
- Solenoids
- Motors
- Fuel System
- Fuel Control (CARBURETED)
- Fuel Control (Fuel Injected)
- Idle Control System
- Ignition System (C3I)
- Ignition System (Exc. C3I)
- Timing Control Systems
- Air Injection
- Early Fuel Evaporation (EFE) CARBURETED 5.0L (VIN Y)
- Exhaust Gas RECIRCULATION (EGR)
- Fuel Evaporation Control
- PCV
- Thermostatic Air Cleaner
- Miscellaneous ECM Controls
- Cooling Fan
- Coolant Level Light
- Hot Light Or Coolant Temperature Light
- Transmission
- Component Locations