Airflow Sensor Assembly
Assembly is mounted inside air cleaner, and incorporates airflow sensor, atmospheric pressure sensor and intake air temperature sensor.
Crankshaft Position & TDC Sensor Assembly
Assembly is located in distributor on SOHC engines. On DOHC engines, which use Direct (or Distributorless) Ignition System (DIS), assembly is a separate unit mounted in place of distributor. Assembly consists of triggering disc (mounted on shaft) and stationary optical sensing unit. Camshaft drives shaft, triggering optical sensing unit. ECM determines crankshaft position and TDC based on signals received from optical sensing unit.