Inside there is a spring to keep the contacts bridge away from the positive and ground contacts. Seems to have fixed the issue. It works on oil pressure, and can either advance or retard cam position to provide the right performance from the engine. 28610-RKE-004 Transmission Oil Pressure Sensor Switch Assembly Compatible with Honda Accord CR-V Element Odyssey Pilot Ridgeline Compatible with Acura MDX RDX RL TL #28610-RAY-003 28610-RGR-004 4.2 out of 5 stars 80 I got the code last week on my wife's car, and swapped out the pressure switch. Honda Pilot Oil Pressure Switch Part Number: 37260-PZA-003 Sensor, Oil Pressure Vehicle Specific Fits the following Honda Pilot Years: 2008 | 5 Door EX (2WD), 5 Door EXL (2WD NAVIGATION), 5 Door EXL (2WD RES), 5 Door EXL (2WD), 5 Door EX-SE (2WD), 5 Door LX-VP (2WD) | KA 5AT Ok, normally with this code, if the oil level is correct and oil is not black, the problem is the vtec oil pressure switch. Before replacing any parts change the engine oil with the factory recommend oil weight. A "high voltage" code usually means on … P2646 HONDA Description The Variable Valve Timing and Lift Electronic Control (VTEC) system activates the Rocker Arm Oil Control Solenoid (VTEC Solenoid Valve) by command from the Engine Control Module (ECM) / Powertrain Control Module (PCM), and it charges/discharges the hydraulic circuit of the VTEC mechanism that switches valve timing … When you read a code, such as P2647, you can't just read "blah blah blah Rocker Arm Oil Pressure Switch blah blah blah. I have a 2007 honda pilot with over 165K miles, which is consuming a lot of oil (over 3 quarts in 3000 miles) the dealership is stating that the oil pressure switch is switched permanently on and the … On the other side of the spring is a diaphragm. Yesterday, I ordered what I believe is the VTEC oil pressure switch #37260-PZA-003. The most common problem that can set the P2652 code is the engine oil. The dealer wanted $250, but I ordered it on eBay for $25. However, with the engine shaking and power loss, that does give concern that there is an oil pressure issue with the pressure being under specs. When I got home, I took the VTEC solenoid off and completely dismantled and cleaned the entire things with carb cleaner. Oil Pressure Sensor Switch Sending Unit 37240-R70-A03 37240-R70-A02 37240-R70-A04 Compatible with 2008-2017 Honda Accord Odyssey Pilot, 2012 2014 2015 Crosstour, 2017-2018 Honda Ridgeline 4.5 out of 5 stars 46 I don't know the exact year and trim level of your vehicle but below is the wiring diagram for a 2007 Pilot. The most common problem that can set the P2652 code is the engine oil. The transmission oil pressure switch has contacts within its housing. 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