What does the p2646 Honda engine code mean?

P2646 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 can I do to fix the p2646 code?

What repairs can fix the P2646 code? 1 Replacing the ‘A’ rocker arm actuator 2 Repairing the wiring harness or connector to the actuator 3 Changing the oil and filter to the correct viscosity oil 4 Flush the engine passages of sludge from lack of oil changes

What causes Honda engine light to set p2652?

The most common problem that can set the P2652 code is the engine oil. Before replacing any parts change the engine oil with the factory recommend oil weight. There is a Factory Service Bulletin for the following Honda Models

What does the DTC code p2646 stand for?

Diagnostic Trouble Code (DTC) P2646 code stands for “A” Rocker Arm Actuator System Performance/ Stuck Off (Bank 1).” It’s a generic OBD-II powertrain code supported by a variety of makes and models. VTEC is a variable valve timing system developed by Honda to improve your vehicle’s fuel efficiency.

What does p2646 mean on an oil pressure switch?

Wiring Issue – P2646 indicates that the voltage from the VTEC/Rocker oil pressure switch is low. This means that a wiring issue very well could be at fault. Take a look at the wiring harness where it plugs into this switch. Make sure that it is undamaged and securely plugged in. Trace the wiring back and see if it is damaged anywhere.

What does variable valve timing and lift ( VTEC ) do?

The Variable Valve Timing and Lift Electronic Control (VTEC) system activates the Rocker Arm Oil Control Solenoid (VTEC Solenoid Valve) by command from the Engine Control Module (ECM) / Powertrain Control Module (PCM), and it charges/discharges the hydraulic circuit of the VTEC mechanism that switches valve timing between Low and High.

What does Honda OBDII code p2646 mean?

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 does this mean?

What is the oil pressure switch on a Honda p2646?

P2646 HONDA | Rocker Arm Oil Pressure Switch Circuit Low Voltage | The Variable Valve Timing and Lift Electronic Control (VTEC) system activates the Rocker Arm Oil Control Solenoid (VTEC Solenoid Valve) by command from

What is the code for a VTEC pressure switch?

The codes are as follows: The P2647 is a VTEC pressure switch high voltage DTC. It may be as simple as needing to replace the switch (P/N 37250-PNE-G01). The switch is the part indicated as #12. You’ll need a deep 22mm thin wall (non-impact) socket to replace it.

Why does my Honda Accord p2646 keep popping up?

If your Accord getting P2646, one of the most common reasons that it pops up is the wrong weight oil was used during the last oil change, the oil level is low, or the oil is incredibly dirty. If any of that sounds like it might be the case for you, start by replacing the oil with the proper oil recommended by Honda.

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″.

What’s the VTEC code on my Honda Element?

My 2003 CR-V (199K) has had the same issue for months – shows as P1259 (VTEC malfunction) From all the internet posts and forums I have searched, these fixes seem to fix the majority of the problem. The ones that it didn’t fix seem to have tried everything and nothing worked – ended up selling or scrapping the vehicle.

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 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 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

What is trouble code for rocker arm actuator?

The definition of this code is ” ‘A’ Rocker Arm Actuator System Performance/ Stuck off Bank 1″. So as you can see, it is very difficult to understand anything about this code with just this definition so in case you are getting this trouble code this article will be very informative to you.

What causes the OBD-II trouble code p2646?

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. What causes the P2646 code? The ECM detects a problem in the rocker arm system for bank 1.

Why does my Honda Accord have a p2646 code?

P2646 HONDA Tech Notes. The most common problem that can set the P2652 code is the engine oil. Before replacing any parts change the engine oil with the factory recommend oil weight. There is a Factory Service Bulletin for the following Honda Models. 2003-2012 Honda Accord L4.

What does p2652 mean in Honda engine code?

The most common problem that can set the P2652 code is the engine oil. Before replacing any parts change the engine oil with the factory recommend oil weight. The factory bulletin suggestss that replacing the VTEC oil pressure switch (P/N 37250-PNE-G01, H/C 6737217) take care of the problem.

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.

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.

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.

Before replacing any parts change the engine oil with the factory recommend oil weight. The factory bulletin suggestss that replacing the VTEC oil pressure switch (P/N 37250-PNE-G01, H/C 6737217) take care of the problem. The cost to diagnose the P2646 HONDA code is 1.0 hour of labor.

What’s the VTEC code on a Honda Element?

If you get the code between idle and 2500 RPMs, and there is a good ground on the BRN/YEL wire, then you may have a faulty VTEC oil pressure switch. 3. While driving the vehicle between 2500 and 4000 RPMs, the VTEC system should engage.

When was the last oil change on a Honda Element?

2003 Honda Element with P2646 code. Replaced Vtec assembly… 2003 Honda Element with… 2003 Honda Element with P2646 code. Replaced Vtec assembly and cleaned screen. New oil and filter, still throwing code under load. Mechanic’s Assistant: When was your last oil change? Just did it. Oil level is spot on and oil new.

What does the p2646 mean on a Honda Element?

This would hurt the oil’s viscosity and trigger the P2646. Low Oil – If the dipstick is not registering oil at all, it may be too low for the VTEC system to function properly. Wiring Issue – P2646 indicates that the voltage from the VTEC/Rocker oil pressure switch is low. This means that a wiring issue very well could be at fault.

Why is my pressure switch not working on my Honda Element?

Had 2 choices, either assume the switch was defective as a brand new component, or too much pressure was building up from restricted oil return passages. Decided to clean the oil passages since this last would be the third pressure switch in the past year and a half of trying to find a solution.

How much does it cost to diagnose p2646 on a car?

The cost to diagnose the P2646 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 engine have a p1009 code?

Here’s how to fix a P1009 or P2646 code for a stuck camshaft position on a Honda i-VTEC engine. The P1009 code is often caused by a sticking Variable Timing Control valve. The VTC valve is responsible for controlling the intake camshaft timing. It is located on the passenger side of the engine.

Is there an easy fix for the p2647 error code?

It is a relatively inexpensive method to help clear sludge from your engine and has been known to eliminate the P2647 issue. No signal getting to the VTEC – Vehicle feels ‘gutless’ at high RPM

Where is the VTEC valve on a Honda p1009?

This is not to be confused with the VTEC valve, which is located at the back of the engine near the firewall. Often the valve and its strainer get clogged with sludge and dirt from the engine oil. This causes insufficient oil flow and the solenoid to stick and not engage or disengage the timing control.

What is the p2646 code for an engine?

Code P2646 is not a very common code since most vehicles do not have actuators for the rocker arms of the engines they manufacture.

How much does it cost to diagnose Honda code p2646?

The cost of diagnosing the P2646 HONDA code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour. P2646 HONDA Possible Symptoms Engine Light ON (or Service Engine Soon Warning Light) P2646 HONDA Meaning

Can a DTC p1009 code be troubleshooted?

YES – If DTC P1009 is indicated, check the oil passages for at the VTC system, then go to step 1. If any other Temporary DTCs or DTCs are indicated, go to the indicated DTC’s troubleshooting. NO – Troubleshooting is complete. Please remember to rate service using the rating page so that I may receive credit. Thanks

What can set the p2652 code on an engine?

The most common problem that can set the P2652 code is the engine oil. Before replacing any parts change the engine oil with the factory recommend oil weight. The factory bulletin suggests that replacing the VTEC oil pressure switch (P/N 37250-PNE-G01, H/C 6737217) take care of the problem.

Navigation