Sending Units & Sensors
WARNING: This page is about a different car, the 1998 Oldsmobile Intrigue, 1998 Buick Regal, and 1998 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.
SENDING UNITS & SENSORS
| Component | Component Location |
|---|---|
| A/C Refrigerant Pressure Sensor (Buick) | On left side of engine compartment, on accumulator. |
| A/C Refrigerant Pressure Sensor (Oldsmobile) | On right side of engine compartment, on accumulator. |
| Ambient Air Temperature Gauge Sensor | Behind front panel, mounted to radiator air baffle. |
| Automatic Transaxle Fluid Temperature (TFT) Sensor | In automatic transaxle. |
| Automatic Transaxle Input Shaft Speed (A/T ISS) Sensor | In automatic transaxle. |
| Camshaft Position Sensor (3.1L VIN M) (Buick) | Front of engine, below intake plenum. |
| Camshaft Position Sensor (3.8L VIN K & VIN 1) | Front of engine, above crankshaft pulley. See Figure . |
| Crankshaft Position (CKP) Sensor (7x) (3.1L VIN M) (Buick) | Right side of engine, below exhaust manifold. |
| Crankshaft Position (CKP) Sensor (24x) (3.1L VIN M) (Buick) | Front of engine, behind harmonic balancer. See Figure . |
| Crankshaft Position (CKP) Sensor (3.8L VIN K & VIN 1) | Front of engine, behind harmonic balancer. See Figure . |
| Daytime Running Lamp (DRL) Ambient Light Sensor | Top center of dash, at base of windshield. |
| Engine Coolant Temperature (ECT) Sensor | Top left side of engine, below throttle body. |
| Heated Oxygen Sensor (HO2S) No. 1 | In right bank exhaust manifold. |
| Heated Oxygen Sensor (HO2S) No. 2 | In exhaust system, rear of catalytic converter. |
| Inside Air Temperature Sensor | Front of dash, below right side of instrument cluster. |
| Intake Air Temperature (IAT) Sensor (3.1L VIN M) (Buick) | Left front of engine compartment, in air cleaner duct. See Figure . |
| Intake Air Temperature (IAT) Sensor (3.8L VIN K) | Left front of engine compartment, in air cleaner duct. |
| Intake Air Temperature (IAT) Sensor (3.8L VIN 1) (Buick) | Left front of engine compartment, in air cleaner duct. See Figure . |
| Knock Sensor (3.1L VIN M) (Buick) | Left side lower engine, above starter. See Figure . |
| Knock Sensor Bank 1 (3.8L VIN K & VIN 1) | Left side of engine, in front of starter. |
| Knock Sensor Bank 2 (3.8L VIN K & VIN 1) | Right side of engine, below exhaust manifold. |
| Manifold Absolute Pressure (MAP) Sensor (3.1L VIN M) (Buick) | Top right side of engine, above valve cover. |
| Manifold Absolute Pressure (MAP) Sensor (3.8L VIN K) | Top of engine, on front of intake manifold. |
| Manifold Absolute Pressure (MAP) Sensor (3.8L VIN 1) (Buick) | Top right side of engine, above valve cover. |
| Mass Air Flow (MAF) Sensor (3.1L VIN M) (Buick) | Left side of engine, in air cleaner duct. See Figure . |
| Mass Air Flow (MAF) Sensor (3.8L VIN K) | Top rear of engine, part of throttle body assembly. |
| Mass Air Flow (MAF) Sensor (3.8L VIN 1) (Buick) | Top rear of engine, part of throttle body assembly. See Figure . |
| Sun Load Temperature Sensor | Top left side of dash. |
| Throttle Position (TP) Sensor (3.1L VIN M) (Buick) | On throttle body assembly. See Figure . |
| Throttle Position (TP) Sensor (3.8L VIN K) | On throttle body assembly. |
| Throttle Position (TP) Sensor (3.8L VIN 1) (Buick) | On throttle body assembly. See Figure . |
| Vehicle Speed Sensor (VSS) | Lower right side of engine compartment, on transaxle. |
| Wheel Speed Sensor (Left Front) | On left front wheel bearing knuckle. |
| Wheel Speed Sensor (Left Rear) | On left rear bearing assembly. |
| Wheel Speed Sensor (Right Front) | On right front wheel bearing knuckle. |
| Wheel Speed Sensor (Right Rear) | On right rear bearing assembly. |