Toyota Camry/Corolla/Corolla Coolant Temperature Sensor 89422-33030 Precise Temperature Control Engine Protection

When your Toyota Camry, Corolla, or Avalon experiences cold-start difficulty, idle instability, abnormal fuel consumption, or the temperature gauge reads persistently low/high, the original water temperature sensor may be aging and fail to relay coolant temperature accurately. This sensor, when functioning normally, monitors engine coolant temperature and feeds data to the ECU to precisely control fuel injection and ignition timing, protecting the engine from cold-start wear or overheating damage. OEM number 89422-33030 (compatible with 89422-06010), fits Toyota Camry, Corolla, Avalon etc. Installation must be performed with the engine cold; bleed some coolant, carefully unplug the old sensor, thread on with a dedicated socket, ensure seal ring orientation and torque to specification to prevent leaks.