P3400 ACURA - Valve Pause System Stuck Off Bank 1
- Low engine oil level
- Faulty Rocker Arm Oil Control Solenoid
- Faulty EOP (Engine Oil Pressure) sensor
- Incorrect oil type used
- Engine mechanical condition
When is the code detected?If there is a difference between the oil pressure conditions in the hydraulic circuit that are determined by the PCM command and the oil pressure conditions that are determined by the status of the front or rear rocker arm oil pressure switches, the system is considered faulty and the DTC is stored.
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine vibration
P3400 Acura DescriptionThe Variable Cylinder Management (VCM) system activates the rocker arm oil control solenoid A (Bank 1), B (Bank 1), and A (Bank 2) by commands from the Powertrain Control Module (PCM), and the appropriate solenoid charges/discharges the hydraulic circuit of the cylinder pause VTEC system that pauses the intake and exhaust valves on the front and rear banks. The PCM monitors oil pressure in the hydraulic circuit of the VTEC mechanism using the front of rear rocker arm oil pressure switches downstream of the rocker arm oil control solenoids.
Need more help?Get the P3400 Acura code diagnosed by a professional: Find a repair shop in your area
P3400 ACURA CommentsHelp us improve AutoCodes.com. Leave a comment below or tell us if the information above help you fix the code. What are the symptoms on your vehicle for the P3400 Acura code? Have you replaced any parts?
Any information is appreciated. Thanks