P2646 won’t go about 4000rpm Acura rsx
 

I need help with this. I’m new to owning an Acura rsx 2006. But I just replaced the vtec Solenoid and I checked the screen in the front and cleaned it but didn’t replace it. Vtc valve was cleaned but not replaced and I’m replacing the oil pressure switch. But before replacing the oil pressure switch it would run perfectly and run great but out of no where it would throw the code again.

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couple threads in the past