One (VTC variable timing camshaft) activates the advance/retard of the intake cam. VTEC and VTC are 2 different things all together. Never seafoamed an engine before but could I take off and clean anything else related to this issue that would help? The only leak I had was the vtec assembly switch itself but is no longer leaking. I made she both plugs were plugged in and connected firmly. As far as the old assembly it didn’t seem crazy dirty to me, the oil seemed normal not crazy dirty or super clean. As for the assembly I bought one oem from the dealer. Since I’ve had the car for 1 year I change the oil every 3k miles with 5w-20 synthetic oil. How bad would you say it is now? Do you have any oil leaks? Good luck! thank you for responding, any help is appreciated. Seafoaming the engine could possibly dislodge gunk inside, clogging worse, or it could help it out. Did you buy an aftermarket assembly? The pressure switch on top, if unplugged (or not working), will cause the same symptoms and code. Any help is much appreciated.ĭo you regularly change the oil? How nasty did the spool filter look when you changed the assembly? IF you noticed lots of gunk when you changed that, it's possible the lower filter/VVT are clogged. Would love to hear what you guys think or if anyone has came up with the same issue. At this point I’m not sure where to turn because when digging into further research, some comments are suggesting to seafoam the engine. After changing the oil again and driving a few more miles the light came back on with the same issue. The next step of research told me to replace the entire oil pressure vtec switch assembly and screen, so I ordered it all from Honda and replaced the entire valve assembly which didn’t prove too difficult. After a few miles of driving the code has now come back and the vehicle doesn’t travel over 3k rpm. So after doing some research the first step was to check and change the oil. The Rocker arm oil pressure switch verifies the correct oil pressure in the Variable Valve Timing (VVT) mechanism, and is often referred to as the VTEC (Variable Valve Timing & Lift Electronic Control) switch. This code indicates that there is an issue with rocker arm oil pressure switch. P2646 is a common diagnostic trouble code that affects Honda made vehicles, including the Element. Recently the check engine light came on so I looked up the code and found it was throwing p2646. I recently purchased not too long again and the car has been great. Hey guys so I’m having an issue with my 06 element.
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