Check the 'Possible Causes' listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector pins.
The cost to diagnose the P1381 Honda code is 1.0 hour of labor. The diagnosis time and labor rates at auto repair shops vary depending on the location, make and model of the vehicle, and even the engine type. Most auto repair shops charge between $75 and $150 per hour.
The Crankshaft Position (CKP) Sensor determines the timing for fuel injection and ignition of each cylinder and also detects engine speed. The Top Dead Center (TDC) Sensor determines ignition timing at start-up (cranking) and when the crank angle is abnormal. The Cylinder Position (CYP) Sensor detects the position of the No. 1 cylinder for the sequential fuel injection to each cylinder. The CKP/TDC/CYP sensors are built into the distributor. If intermittent interruption Cylinder Position (CYP) sensor pulsing signals are detected, a malfunction is detected, and the P1381 Diagnostic Trouble Code (DTC) is stored.
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