Can you drive with bad rocker arm?
With broken or loose rocker arms, the exhaust valves and intake valves can’t function correctly and the cylinder associated with the faulty rocker arm will be disabled. This will ultimately limit the performance of your engine and your ability to drive the car smoothly and safely.
When is a rocker arm actuator stuck on?
If the PCM detects a level of resistance from the rocker arm actuator circuit indicating that it is stuck in the on (valve open) position, a code P2647 will be stored and a malfunction indicator lamp may be illuminated. What are the common causes of code P2647? What are the symptoms of code P2647? How do you troubleshoot code P2647?
What is the diagnostic trouble code for rocker arm?
P2646 is a diagnostic trouble code (DTC) for “‘A’ Rocker Arm Actuator System Performance / Stuck Off Bank 1”.
What does DTC stand for in rocker arm actuator?
DTC P2646 is defined as “Rocker Arm Actuator A, Bank 1, Performance or Stuck Off.” Honda, Acura, and a couple other automakers use this definition.
How does the VTEC system control the rocker arm?
The VTEC system controls the rocker arm control solenoid through the powertrain control module (PCM). The PCM uses the rocker arm oil pressure switch to monitor and verify the oil pressure so the variable timing mechanism can be properly activated.
If the PCM detects a level of resistance from the rocker arm actuator circuit indicating that it is stuck in the on (valve open) position, a code P2647 will be stored and a malfunction indicator lamp may be illuminated. What are the common causes of code P2647? What are the symptoms of code P2647? How do you troubleshoot code P2647?
P2646 is a diagnostic trouble code (DTC) for “‘A’ Rocker Arm Actuator System Performance / Stuck Off Bank 1”.
DTC P2646 is defined as “Rocker Arm Actuator A, Bank 1, Performance or Stuck Off.” Honda, Acura, and a couple other automakers use this definition.
The VTEC system controls the rocker arm control solenoid through the powertrain control module (PCM). The PCM uses the rocker arm oil pressure switch to monitor and verify the oil pressure so the variable timing mechanism can be properly activated.