What is the rocker arm actuator on a Honda?
The electronic control module regulates various actuators on the internal combustion engine and one of the actuators that ECM regulates is the rocker arm actuator. A rocket arm actuator system is a switch that controls the flow and pressure of oil in the engine and it also consists of oil passages. What causes the P2646 trouble code?
What is the pressure switch on a Honda p2647?
P2647 HONDA | Rocker Arm Oil Pressure Switch Circuit High Voltage | The VTEC system activates the rocker arm oil control solenoid (VTEC solenoid valve) by command from the engine control module (ECM)/powertrain control
What does error code p2646 mean on Honda?
On-Board Diagnostics is a built-in system in your vehicle for diagnosing problems, it sets error codes which in turn tells you about which part of your vehicle is not working properly. There are different codes for different troubles. What does P2646 Honda trouble code indicate?
What are the common causes of code p2647?
What are the common causes of code P2647? 1 Low engine oil level or oil pressure condition 2 Defective VVT/VTEC pressure switch 3 Faulty rocker arm actuator 4 Broken or loose rocker arm 5 Open/shorted wiring/connector in the rocker arm actuator circuit
The electronic control module regulates various actuators on the internal combustion engine and one of the actuators that ECM regulates is the rocker arm actuator. A rocket arm actuator system is a switch that controls the flow and pressure of oil in the engine and it also consists of oil passages. What causes the P2646 trouble code?
P2647 HONDA | Rocker Arm Oil Pressure Switch Circuit High Voltage | The VTEC system activates the rocker arm oil control solenoid (VTEC solenoid valve) by command from the engine control module (ECM)/powertrain control
What is the p2647 error code for Honda Accord?
The check-engine-light came on and gave a P2647 error code. This post walks step-by-step through the easy fix. I hope you find this helpful! The vehicle I am working on here is a 2004 Honda Accord (4-cyl).
What does p2647 mean in engine control module?
P2647 Meaning The Engine Control Module (ECM) commands the Rocker Arm Actuator to control the oil hydraulic circuit. Oil flows through the Rocker Arm Actuator to the variable valve timing system to adjust the engine’s valve timing. The variable valve timing (VVT) system is used to improve engine’s performance, fuel economy or emissions.
What is the diagnostic code for Honda Accord?
P2646 is a common diagnostic trouble code that affects Honda made vehicles, including the Accord. This code indicates that there is an issue with rocker arm oil pressure switch.
How much does it cost to repair a Honda rocker arm?
Please try again later. The cost of diagnosing the P2646 HONDA code is 1.0 hour of labor. The auto repair’s diagnosis time and labor rates vary by location, vehicle’s make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
Why does my Honda Accord have variable valve timing?
It can get dirty and cause P2646. The VTEC system controls the variable valve timing in your Accord. It does this by activating the VTEC/Rocker arm solenoid. It uses the Rocker Arm oil pressure switch to monitor the pressure of this system.
P2646 is a common diagnostic trouble code that affects Honda made vehicles, including the Accord. This code indicates that there is an issue with rocker arm oil pressure switch.
Are there any genuine Honda Accord rocker arms?
We offer a full selection of genuine Honda Accord Rocker Arms, engineered specifically to restore factory performance. Please narrow the Engine Rocker Arm results by selecting the vehicle.
What causes an OBDII code on a Honda?
P2647 HONDA Possible Causes 1 Check engine oil level, oil condition and pressure 2 Faulty Variable Valve Timing and Lift Electronic Control (VTEC) / Rocker Arm Oil Pressure Switch 3 VTEC/Rocker Arm Oil Pressure Switch harness is open or shorted 4 VTEC/Rocker Arm Oil Pressure Switch circuit poor electrical connection
What is the p2647 error code for Honda?
As soon as the tachometer touched 2700 rpm, the car bucked and the check engine light (CEL) came on! Luckily I had my trusty engine code reader handy, so I pulled over and read the error code. The error was P2647. A related error is P2646. P2647 – Rocker Arm Actuator Control System Stuck On
P2647 Meaning The Engine Control Module (ECM) commands the Rocker Arm Actuator to control the oil hydraulic circuit. Oil flows through the Rocker Arm Actuator to the variable valve timing system to adjust the engine’s valve timing. The variable valve timing (VVT) system is used to improve engine’s performance, fuel economy or emissions.
What does it mean when your rocker arm is stuck?
P2647 – Rocker Arm Actuator Control System Stuck On P2646 – Rocker Arm Actuator System Performance/Stuck Off Bank 1 These errors relate to the VTEC solenoid. This is a really interesting mechanism! Read more details on the VTEC system.
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?
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.
The check-engine-light came on and gave a P2647 error code. This post walks step-by-step through the easy fix. I hope you find this helpful! The vehicle I am working on here is a 2004 Honda Accord (4-cyl).
P2647 – Rocker Arm Actuator Control System Stuck On P2646 – Rocker Arm Actuator System Performance/Stuck Off Bank 1 These errors relate to the VTEC solenoid. This is a really interesting mechanism! Read more details on the VTEC system.
Why is my DTC p2646 rocker arm not working?
Depending on year, make, and model, DTC P2646 may have number of causes. Here are some of the most common. Oil Problems – Low oil level, incorrect oil viscosity, or thinned oil can all cause problems with the VTEC system.
As soon as the tachometer touched 2700 rpm, the car bucked and the check engine light (CEL) came on! Luckily I had my trusty engine code reader handy, so I pulled over and read the error code. The error was P2647. A related error is P2646. P2647 – Rocker Arm Actuator Control System Stuck On
What does the rocker arm control solenoid do?
In vehicles equipped with VTEC, the rocker arm control solenoid supplies hydraulic pressure to the variable timing and lift mechanism. This allows the VTEC system to adjust valve timing and lift as needed.
What does p2646 mean on Honda CRV?
P2646 is a common diagnostic trouble code that affects Honda made vehicles, including the CR-V. This code indicates that there is an issue with rocker arm oil pressure switch.
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”.
P2646 is a diagnostic trouble code (DTC) for “‘A’ Rocker Arm Actuator System Performance / Stuck Off Bank 1”.
P2646 HONDA Possible Causes Check engine oil level, oil condition and pressure Faulty Variable Valve Timing and Lift Electronic Control (VTEC) / Rocker Arm Oil Pressure Switch VTEC/Rocker Arm Oil Pressure Switch harness is open or shorted VTEC/Rocker Arm Oil Pressure Switch circuit poor electrical connection
What happens when your Honda goes into limp mode?
If the VTEC doesn’t get the signal, is clogged, or leaks then problems occur. The vehicle goes into “limp mode,” meaning that you cannot accelerate beyond about 2700 RPM or so. Note 1: One thing you should check before jumping into a repair is your oil level.
P2647 HONDA Possible Causes 1 Check engine oil level, oil condition and pressure 2 Faulty Variable Valve Timing and Lift Electronic Control (VTEC) / Rocker Arm Oil Pressure Switch 3 VTEC/Rocker Arm Oil Pressure Switch harness is open or shorted 4 VTEC/Rocker Arm Oil Pressure Switch circuit poor electrical connection
What does code p2647 on OBD-II mean?
What Does Code P2647 Mean? When an OBD-II equipped vehicle has stored a code P02647, it means that the powertrain control module (PCM) has detected a valve train (rocker arm) malfunction for engine bank one. Bank 1 denotes that the problem has occurred in the bank of the engine which contains the number one cylinder.
What is the OBD code for the rocker arm?
If the PCM does not receive the correct voltage signal back from the rocker arm oil pressure switch, it may set code P2646. The “A” in this OBD code’s definition indicates the intake camshaft.
The P2646 code indicates the problem with the rocker arm actuator which means either the actuator is not working properly or it is stuck in the off position. Bank 1 in the definition indicates the engine side where the cylinder 1 is present and the letter ‘A’ indicates the Intake camshaft.
If the PCM does not receive the correct voltage signal back from the rocker arm oil pressure switch, it may set code P2646. The “A” in this OBD code’s definition indicates the intake camshaft.
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.
The P2646 code indicates the problem with the rocker arm actuator which means either the actuator is not working properly or it is stuck in the off position. Bank 1 in the definition indicates the engine side where the cylinder 1 is present and the letter ‘A’ indicates the Intake camshaft.
What does Bank 1 mean on Honda trouble code?
Bank 1 in the definition indicates the engine side where the cylinder 1 is present and the letter ‘A’ indicates the Intake camshaft. So getting the P2646 trouble code means that the electronic control module of your vehicle has detected some problem in getting feedback from the rocker arm actuator.
Why are rocker arm solenoids in the run position?
It can also be detrimental because of the delicate nature of the electronic components which are required to operate in perfect synchronicity with each other. Typical operation will dictate that a 12-volt signal is applied to all rocker arm solenoids (actuators) with the ignition in the run position.
What causes the rocker arm actuator to be clogged?
The oil passages are clogged or the oil pressure is not up to specifications. The rocker arm actuator is clogged with sludge or is sticking intermittently. The engine may have excessive sludge binding the rockers from moving or the oil is too thick.
The oil passages are clogged or the oil pressure is not up to specifications. The rocker arm actuator is clogged with sludge or is sticking intermittently. The engine may have excessive sludge binding the rockers from moving or the oil is too thick.
What does p2646 stand for on Honda Element?
I took the Element to AutoZone for them to put their scanner on it and was told “P2646: Rocker arm actuator A- Bank 1 Perf. or Stuck off.” Since then I’ve found almost general consensus on this board that P2646 is: “VTEC Oil Pressure Switch Circuit Low Voltage.” My question, why the difference in definition?
What does p2646 stand for in OBD2?
P2646 is a diagnostic trouble code that applies to vehicles with OBD2 systems. The definition of this code is ” ‘A’ Rocker Arm Actuator System Performance/ Stuck off Bank 1″.
I took the Element to AutoZone for them to put their scanner on it and was told “P2646: Rocker arm actuator A- Bank 1 Perf. or Stuck off.” Since then I’ve found almost general consensus on this board that P2646 is: “VTEC Oil Pressure Switch Circuit Low Voltage.” My question, why the difference in definition?