Keyword Analysis & Research: honda code p2646 element


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Frequently Asked Questions

What does p2646 mean on a Honda Accord?

P2646 codes indicate that the “A” rocker arm actuator control circuit for bank 1 has a performance issue or is stuck in the off position when detected by the Engine Control Module (ECM). Hondas, for example, have variable valve timing and lift electronic control systems, often called VTECs, that enhance fuel efficiency and engine performance.

How do I know if my engine is p2646?

It uses the Rocker Arm oil pressure switch to monitor the pressure of this system. When the pressure is lower than the solenoid, the check engine light will come on and you’ll get P2646. Here’s a great video on diagnosing P2646 from jimthecarguy on YouTube.

What does p2646 mean on a VTEC/rocker 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.


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