2007 honda pilot code p2646

Just encountered this issue on a 2007 Honda Pilot EX. Learn what Rocker Arm Oil Pressure Switch Circuit Low Voltage means, location and how to repair? To let air in and out of the cylinder, a set of valves opens and closes, their timing in relation to piston position. P2647 Code on 2007 Honda Pilot Looking to fix an engine light error code P2647. To let air in and out of the cylinder, a set of valves opens and closes, their timing in relation to piston position. Continue with Facebook. Check electrical connectors for corrosion, broken or bent pins, and ensure they are fully seated. Bank 1 denotes that the problem has occurred in the bank of the engine which contains the number one cylinder. 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. Volvo XC100 Forum NEW! I replaced the VTEC Oil Pressure Switch, cleared the codes and took the car for a test drive. What Does P2646 Code Mean? For a printed owner's manual, click on authorized manuals or go to www.helminc.com. If it throws it again I'll be looking into checking/cleaning the VTEC solenoid screen like Can recommended. The trouble code will set if the VTEC pressure switch doesn’t open and the voltage stays low. "Switch assy., valve timing oil pressure," Honda p/n 37250-PNE-G01, lists for $58 retail. Correct as necessary. I don't know the exact year and trim level of your vehicle but below is the wiring diagram for a 2007 Pilot. Benjamin Jerew (Contact Me) When the pressure is lower than the solenoid, the check engine light will come on and you’ll get P2646. P2646 is a common diagnostic trouble code that affects Honda made vehicles, including the Shuttle. Thank you. I just had the P2646 code cause the engine check light to come on and sudden loss of power above 3000rpm. Oil Problems – Low oil level, incorrect oil viscosity, or thinned oil can all cause problems with the VTEC system. Whereas the technology to change valve timing or lift didn’t exist yet, most engines were manufactured with average cycle characteristics or favoring high or low end operation. Repair as needed. Not good. I scanned for codes and it came up P2646. One check would be to use the, P266B – Rocker arm actuator position sensor A, bank 2 – circuit range/performance, Rocker arm actuator A, bank 1 - performance problem or actuator stuck off. The VTEC system controls the variable valve timing in your Shuttle. Check wire harnesses for obvious damage. Honda P2646, P2651, P2647, P2652 and Honda rocker arm oil pressure codes Honda has issued a service bulletin #13-021 to address any of these rocker arm oil codes P2646, P2651, P2647, P2652 on the vehicles listed below. This code indicates that there is an issue with rocker arm oil pressure switch. This code indicates that there is an issue with rocker arm oil pressure switch. The trouble codes may be intermittent and not all codes may be stored in the PCM. AVS Forum 1M+ members. You may not be able to clear the codes. If the last oil change was performed incorrectly or there is oil thinning due to fuel in the crankcase (misfiring or leaking injectors, possibly cold idling), this may lead to this problem. The 2007 that I just bought threw these codes the day after I bought it. Lucid Forum NEW! P2646 Honda N360; P2646 Honda Life; P2646 Honda Pilot Ii; Honda Element P2646 Engine Trouble Code. When I left the dealer ship it came back right away. 2007 Honda Pilot Online Reference Owner's Manual Use these links (and links throughout this manual) to navigate through this reference. Before replacing any parts change the engine oil with the factory recommend oil weight. - Sherlock Holmes, By adjust valve timing or lift, or both, the engine control unit could adjust cycle characteristics depending on engine operating conditions and driver demand. I … Oil that is too thin won’t build enough pressure to operate the VTEC system. 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. When you start the car, it starts just fine. Trying to get some suggestions. Depending on engine speed and load, optimal valve timing (in relation to cylinder position) and lift varies. Check oil sludge. What the P2649 code mean. The following TSBs of Honda are related to DTC P2646. P2647 causing limp? Taking your car into a shop will cost you around $200 depending on the car. I also changed the oil yesterday. I reset the codes and drove to the dealership (7 miles) and it was fine. 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. P2649 is an OBD-II code for the engine control module (ECM) detecting the ‘A’ rocker arm actuator control circuit for bank 1 has voltage is high. This repair also applies to 2002, 2003, 2004, 2005, 2006, and 2007 Honda Accords, as well as other Honda’s using the i-VTEC engine (Honda Element, Honda Civic, Honda CRV), with perhaps some variations depending on the vehicle. Learn how your comment data is processed. This site uses Akismet to reduce spam. The same code, P2646 came back. Correct as necessary. The camshafts, in turn, depress rocker arms, and the rocker arms press the valves, opening them to allow intake or exhaust in the cylinder. In most engines, the ECM uses oil pressure to control the valve system, though some newer versions use electric motors to achieve the same. P2646 is a common diagnostic trouble code that affects Honda made vehicles, including the Shuttle. The result was more power when needed, such as during acceleration, and better fuel economy, while cruising. 30+ members. It does this by activating the VTEC/Rocker arm solenoid. Here’s how to … The Rocker arm oil pressure switch verifies the correct oil pressure in the Variable Valve Timing (VVT) mechanism, and is often referred to as the VTEC (Variable Valve Timing & Lift Electronic Control) switch. You may notice a minor dip in performance and fuel mileage. This issue can also produce a P2646 error code. 2007 honda pilot with dtc p2647.had replaced all rocker arms in rear bank as per tsb and replaced the vcm assembly and still has same code.checked the power from pcm ro vcm assembly and it had 3.5 vol … read more Find detailed specifications and information for your 2007 Honda Pilot. Yes, VTEC is all about oil pressure at the head. Feb 5, 2019 - Repair Information for P2646 Honda code. If oil passages are blocked, VTEC won’t function. Using the timing belt or timing chain, the crankshaft drives the camshafts. Having repeated Check Engine light with P2646 code and occasionally the VSA trips as well but the VSA resets itself. Last Updated 2017-03-28 A "high voltage" code usually means on open in the circuit. Here’s a great video on diagnosing P2646 from jimthecarguy on YouTube. I could've just swapped the oil pressure solenoid, but decided to give the engine a fresh oil change with just a bit more oil than I normally put in, … As soon as you try to drive it, its pretty shaky. Join now to ask and comment! P2646 appearing by itself does not usually correspond to any noticeable drivability symptoms. This allows the Variable Timing System to … "Once you eliminate the impossible, whatever remains, no matter how improbable, must be the truth." ASE Master Tech. After driving about one mile, the MIL came back on. Check oil level. The ECM detects a … The result was more power when needed, such as during acceleration, and better fuel economy, while cruising. 2002 Honda Civic Engine TSB Details … 2002 Honda CR-V Electrical System TSB Details … 2002 Honda CR-V Engine TSB Details … 2003 Honda Accord Electrical System TSB Details … 2003 Honda Accord Engine TSB Details … 2003 Honda … After I followed the solution on this post the issue is solved and only cost my time. Here are the most common causes for P2646: Good luck diagnosing P2646 in your Honda Shuttle. - Honda-Tech Trouble code p2647 oil pressure switch Honda Odyssey 2006 - FixYa The dreaded P2647 - Honda Element Owners Club Forum Looks to be problem with oil getting to the vtec. Check oil viscosity. P2646 is a common diagnostic trouble code that affects Honda made vehicles, including the CR-V. Working on a 2007 Honda pilot Ex . ... 2007 Honda Pilot LX 201,000 miles. Search Fixya ... 2003 Honda Accord engine code p2646 engine will not rotate 360 but stops.when turned in reverse by hand starter will turn then get stuck and will not turn forward. 2007 Honda Pilot service code P2647 A rocker arm actuator control system stuck on (bank 1) what does tis mean - Honda 2007 Pilot question. At high engine speed, more lift (bigger opening) and more duration (longer opening) allow for better “breathing” of the cylinder, improving performance. Each automaker has it’s own definitions of the system – Toyota uses VVT (Variable Valve Timing), while Honda uses VTEC, which controls lift, and VTC (Valve Timing Control). It uses the Rocker Arm oil pressure switch to monitor the pressure of this system. If the VVT system isn’t working properly, you’ll probably notice reduced engine performance and increased fuel consumption. Since this code came up, I have removed the VTEC solenoid and cleaned the screen filter which had some gunk. ... Honda Pilot Forums 129K+ members. Each automaker has it’s own definitions of the system – Toyota uses VVT (Variable Valve Timing), while Honda uses VTEC, which controls lift, and VTC (Valve Timing Control). improve oil flow, and switching to a synthetic blend or full-synthetic oil may help to clean out deposits and restore function. OBD-II Code P2646 is defined as a "A" Rocker Arm Actuator System Performance/Stuck Off. What Does Code P2646 Mean? The code reads: "A Rocker Arm Actuator Control System Stuck On (Bank 1). What the P2646 code means 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. Further checks may be impossible without special tools. Reply. ... Honda Pilot Forums 129K+ members. Here are some of the most common. Bank 1 in the definition indicates the engine side where the cylinder 1 is present and the letter ‘A’ indicates the Intake camshaft. Infrequent oil changes lead to engine oil sludge. 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Honda Odyssey P2646: Rocker Arm Oil Pressure Switch Circuit → Low Voltage, Honda Pilot P2646: Rocker Arm Oil Pressure Switch Circuit → Low Voltage, Chevy Impala: Brake Lights Stuck On → Diagnosis. When you read a code, such as P2647, you can't just read "blah blah blah Rocker Arm Oil Pressure Switch blah blah blah. If there is insufficient oil in the system, there won’t be enough oil pressure to drive the VTEC system. I don't know whether the oil pressure switch on the block is relevant to that code. 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. Pretty sure it's the J35A9 motor. 2007 Ody Touring 121k Oil has been changed regularly with 5W-20 synthetic but last change did run longer than planned I suspect … The check engine light is on. If there is anything that you would like to add that could help someone else with this code, please leave a comment below. ... Honda Pilot Forums 129K+ members. You may have to disassemble the head/cam mech to clean/repair, if you are not skilled look up a Honda specialist mechanic. Depending on year, make, and model, DTC P2646 may have number of causes. 30+ members. A P2646 trouble code on a Honda CRV with the 2.4L engine may be caused by the variable timing/lift control (VTEC) pressure switch. 70+ members. Honda Pilot P2646 OBD-II Diagnostic Powertrain (P) Trouble Code Information Page. If your Shuttle 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. 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Anything that you would like to add that could help someone else with this 2007 honda pilot code p2646 indicates that there an. Like to add that could help someone else with this code, please leave a comment.... Set if the VTEC system Honda Pilot Ii ; Honda Element P2646 engine trouble code Information Page about 20 still... Oil check – oil pressure switch Actuator system Performance/Stuck Off has occurred in the system there... Of your 2007 honda pilot code p2646 but below is the engine oil, location and how to … the following of... Timing chain, the crankshaft drives the camshafts and fuel mileage s a great video on diagnosing P2646 in Honda! '' Honda p/n 37250-PNE-G01, lists for $ 58 retail it, its pretty shaky indicates that there is that. Error code your 2007 Honda Pilot Looking to fix an engine light will come on you... Ii ; Honda Element P2646 engine trouble code that affects Honda made vehicles, including the.... 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