4.3 out of 5 stars 3. In most cases, their diagrams are right from the factory manuals. It's not the VTEC solenoid, MIL on, rocker arm oil pressure switch DTC stored. The defective switches are going into the open state at RPS 2500 and less when they should be in the closed position. Wife of drug kingpin El Chapo arrested in Virginia, Pat Sajak called out for mocking contestant, Woman’s license mistakenly features her in a face mask, Top volleyball duo boycott country over bikini ban, 'Bachelor' hopeful suffers horrifying skydiving accident, Raiders player arrested in Texas street-racing incident, Jobless workers may face a surprise tax bill, Actress confirms engagement to NFL star Aaron Rodgers, Congressman puts right-wing extremists on notice, LPGA star shares wrenching story of abuse as a child, Shearer will no longer voice Black 'Simpsons' character. P2646 Honda Fix P2646 Honda. Shops are reporting a high incidence of P2646 Honda trouble codes on Honda CR-V, Honda Element and Accord models with the 2.4L engine. Next, backprobe the connector to the oil switch and check for reference voltage on the blue/black wire with the engine running. Hence the reference to "circuit". What are the common causes of code P2646? http://www.helpforcars.net/obd_codes/p2647_honda.htmlVtech solenoid on passenger side … The dealer here charged me $408.88. 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. Based on the service bulletin, the rocker arm pressure switch can fail on an intermittent basis. This morning as I was driving the check engine light came on, stepped hard on gas and it seemed as the car was going to die (rpms going crazy only when I step on gas hard) I accelerate normally and it doesnt do that drives fine, went to autozone they told me I had a P2646 code checked my engine oil it was a bit low so added more oil. P2646 is a common diagnostic trouble code that affects Honda made vehicles, including the Accord. Điện thoại di động. We recommend Torque Pro. Get your answers by asking now. Acura/Honda says the problem is usually intermittent and may be difficult to duplicate once the DTC is cleared with a scan tool. 01 Honda Odyssey is automatic, but D4 starts blinking and I have to manually shift between gears, why is this? P2646 2006 Honda Accord Last Post RSS. P2646 has nothing to do with clogged screens. SOURCE: Honda Service News. As with other OBD-II codes, P2646 has several potential causes. 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. Can I still drive my 2003 Honda Accord LX 2.4L VTEC with P2646 code.? Some 2002-06 Honda cars and 2007-12 RDX SUVs may turn on the MIL and log rocker arm oil pressure switch DTC P2646 or P2647 in PCM memory. P2646 is a common diagnostic trouble code that affects Honda made vehicles. Will the code go away, if not can I drive it for two more weeks or will it break down if I dont change the Vtec solenoid. 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. OBD-II Code P2646 is defined as a "A" Rocker Arm Actuator System Performance/Stuck Off. What Does P2646 Code Mean? 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