What does DTC p2646 stand for in Honda?
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. What are the common causes of code P2646? Depending on year, make, and model, DTC P2646 may have number of causes. Here are some of the most common.
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 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 should I do about my Honda Element p2646?
Mine was fixed with an OEM filter and 5w20 after trying most of what you’ve already done. After trying the spool valve, both screens, timing solenoid, way too much futzing over a year and a half. Drove it under 2800rpm for most of the year and a half, it maxxed out at 68 mph without a hill climb.
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 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
How does the VTEC work on a Honda Accord?
It accomplishes this by turning a control solenoid ‘ON’ to allow oil pressure into the VTEC control passages to apply pins that will lock the intake rockers. When the oil pressure is present, the pressure switch signal will go high. When the control solenoid is turned ‘OFF’, the oil pressure is dumped and the oil pressure switch signal will go low.
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.