Code P2646 on my 2006 Honda Civic si
10-30-2011
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Code P2646 on my 2006 Honda Civic si 
I recently posted a thread https://www.civicforums.com/forums/3...ml#post4567644After i read reply's i checked my oil added a couple quarts and took it for a drive. Runs fine, sounds fine, no loss of power, but still the Malfunction Indicator lamp on the dash. So i used a friends OBDll/EOBD Scanner and got DTC Code P2646 $0710 Generic
A Rocker Arm Actuator
System Performance or
Stuck off Bank 1
Any suggestions on the Next step??
Also should i try to reset the ECU?
10-30-2011
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Re: Code P2646 on my 2006 Honda Civic si
Reset the ECM first. If the code comes back check for continuity in the oil pressure switch with the ignition off. No continuity= replace the oil pressure switch. Check for resistance between the VTEC solenoid and body ground. Resistance should be 14-30 Ohms. If it isn't replace the VTEC solenoid.
10-31-2011
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There is NO Fuse labeled "ECM fuse" in the under-hood fusebox. Even in my manual there is NO "ECM" Period!
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