Yesterday the check engine light came on 03 Accord EX 4-cyl auto, the code is P2647. According to the dealership and O’Reilly print out it can be a number of things, so I am looking for some guidance. The car starts running rough after 2700 rpms, and then (if you keep pressing accelerator) dies. So …

P2647 Rocker Arm Actuator System is Stuck Open

Stig March 23, 2012, 4:35pm 4

Took it to the shop, $150 later for VTEC oil pressure switch and everything is fine. Thank you everyone for your help!

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