Leganza SX L4-2.2L DOHC D-TEC MFI (1999)
Camshaft Position Sensor (CMP): Description and Operation
CAMSHAFT POSITION SENSOR
The camshaft position sensor (CMP) sends a CMP signal to the engine control module (ECM). The ECM uses this signal as a "sync pulse" to trigger the
injectors in the proper sequence. The ECM uses the CMP signal to indicate the position of the #1 piston during its power stroke. This allows the ECM to
calculate true sequential fuel injection mode of operation. If the ECM detects an incorrect CMP signal while the engine is running, Diagnostic Trouble
Code (DTC) P0341 will set. If the CMP signal is lost while the engine is running, the fuel injection system will shift to a calculated sequential fuel
injection mode based on the last fuel injection pulse, and the engine will continue to run. As long as the fault is present, the engine can be restarted. It
will run in the calculated sequential mode with a 1-in-6 chance of the injector sequence being correct.
