Good morning all. I am new here. I have a 2004 Accord Coupe. I replaced the engine in January. The engine light came on a few weeks ago. I took it to Auto Zone and had the code pulled. It said that I needed to replace the intake manifold gasket. Well that has been replaced, but the light is still on and the car is still having the same "choking" issue during acceleration that it was having before. Is there something else that I should have replaced along with the manifold gasket? I replaced the oil pan gasket in June too. I am obviously missing something. Any suggestions, information, etc is greatly appreciated. Thank you.

 

Post the actual trouble code.

 

Sorry about the late reply. The actual code is P2647. It says a rocker arm actuator control system stuck on (bank 1) confirmed.

 

P2647 is VTEC oil pressure circuit high voltage.

It may be due to the VTEC oil pressure switch.

 

Good afternoon. I have replaced the VTEC oil pressure switch. Now my engine is throwing a different code. Any ideas what this could be now?

P0420
Catalyst System
Efficiency Below
Threshold Bank 1
CONFIRMED