9/18/2023 0 Comments P2646 07 honda odysseyHow does a mechanic diagnose the P2646 code? The valve train may be excessively noisy if one or more rockers are stuck in the incorrect position.The Check Engine Light will be illuminated.The engine valve train will not move as designed causing a low power condition.Too thick of an oil will cause the system to not work as designed. The incorrect oil viscosity is being used.The engine may have excessive sludge binding the rockers from moving or the oil is too thick.The rocker arm actuator is clogged with sludge or is sticking intermittently.The oil passages are clogged or the oil pressure is not up to specifications.The ECM detects a problem in the rocker arm system for bank 1.P2646 is an OBD-II generic code for the engine control module (ECM) detecting the 'A' rocker arm actuator control circuit for bank 1 has a performance problem or is stuck in the off position. 'A' Rocker Arm Actuator System Performance or Stuck Off Bank 1 What the P2646 code means
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