Jan 1, 2023 · I think there is a P2646 thread over there every few weeks. It is a problematic code. Here is one more P2646 thread from over there. It’s not a technical thread, but more of an …

Apr 17, 2006 · The same code, P2646 came back. I called a friend who happens to specialize in Hondas and he suggested that I clean the screen that is located in the same housing as the …

Jan 4, 2009 · The Diagnostic Trouble Code (DTC) was P2646: VTEC Oil Pressure Switch Circuit Low Voltage. Description: The VTEC system activates the VTEC solenoid valve from the …

Aug 11, 2019 · Well, my 2005 Element (212K miles) became infected with the P2646 VTEC malfunction code last week. CEL comes on and goes into limp mode (won't go over 2800...

Dec 21, 2021 · Also, the first thing that should be checked on a P2646 and P2647 error code is the rocker arm pressure switch which is the most common problem with both of those codes.

Mar 14, 2025 · 2005 Honda Element 165,000 miles Check engine light went off after I changed the oil and filter. Not sure of how much sludge is in the engine/system No warning lights are on …

Mar 27, 2024 · P2646 code and Vtec screen (s) replacement. Jump to Latest 7.7K views 4 replies 3 participants last post by Serapis Aug 4, 2025 M

Nov 28, 2010 · Danno you rock. Got the P2646 code (as a result of a check engine light and VSA lights) Oil screen was nasty. Cleaned with carb cleaner and problem fixxed. The P2646 code …

Nov 17, 2024 · What I would recommend for the P2646 code, before jumping to conclusions and changing out the oil pressure switch or VTEC solenoid, is to thoroughly clean out that entire …

May 12, 2018 · Hello everyone! Bought 2003 element. Check engine was on and code was P2646. The car didn’t want to go over 3500 rev. I replaced screens on solenoids and one extra …