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Low Oil – If the dipstick is not registering oil at all, it may be too low for the VTEC system to function properly. Wiring Issue – P2646 indicates that the voltage from the VTEC/Rocker oil pressure switch is low. This means that a wiring issue very well could be at fault. Take a look at the wiring harness where it plugs into this switch. Customer Questions & Answers. $38.10 MSRP: $54.27. You Save: $ 16.17 ( 30%) ADD TO CART. 37240-R70-A04 Switch Assembly, Oil Pressure is Ref No. 14 in the diagram below. The diagram listed above is for your reference. View diagram for your vehicle. Bolt, Flange (8X28) 95701-08028-08. The two oil pressure switches on the front and rear cylinder heads are attached to the VVT valves that operate the cylinder deactivation system. The sensor t...Part Number: 37240-R70-A04. Vehicle Specific. Other Name: Oil Pressure Sending Unit; Oil Pressure Switch, Pressure Switch. Replaces: 37240-R70-A02, 37240-R70-A03. $38.10 MSRP: $54.27. You Save: $ 16.17 ( 30%) Check the fit. Add to Cart. Fits the following 2015 Honda Pilot Submodels:I have a 2006 2.4L EX-L w/ 201000 mi and I'm getting P0139, and P2647 too. Never used OBD before. I used Royal Purple 5w-20 w/ RP long life filter. I have my oil changed about every 9K mi. (RP rep says it only needs to be done every 10K) From what everyone says, it sounds like it's a solenoid problem.Sep 20, 2016 · P3400 – Replace the Bank 1, rear rocker arm oil pressure switch. P3497 – Replace the Bank 2, front rocker arm oil pressure switch. Photo 2. 3. Install the new rocker arm oil pressure switch(es) and new O-ring(s). Torque the oil pressure switch to 22 N.m (16 lb-ft). 4. Reinstall the engine cover. 5. Clear the code(s) with the HDS. One of the most common causes of the P2646 code is when the ECM detects a problem in the rocker arm system for bank 1. Low or dirty engine oil will also cause the code to set and low oil pressure ... The VTEC oil pressure switch is a normally closed switch. The ECM sends a voltage to the switch and expects the voltage to go through the switch to ground. If the ECM reads a voltage on that circuit when the VTEC system should not be operating, it will turn on the "check engine" light and set a code. This code will be a P1259 on a vehicle with ...4. Install the new rocker arm oil pressure switch and the new 0-ring. Torque the switch to 22 N•m (16 lbft). 5. PZEV: Install the brackets and torque the bolts to 12 N.m (8. 7 lb-ft), then install the wire harness. 6. Reinstall the power steering high pressure hose bracket. 7. Clear the DTC(s) with the HOS.Other Name: Oil Pressure Sending Unit; Oil Pressure Switch, Pressure Switch; Replaces: 37240-R70-A02, 37240-R70-A03 $38.10 MSRP: $ 54.27Honda Fit Switch Assembly, Valve Timing Oil Pressure. Part Number: 37250-PNE-G01. Vehicle Specific. Other Name: Oil Pressure Switch; Pressure Switch. $91.52 MSRP: $132.64. You Save: $ 41.12 ( 32%) Check the fit. Add to Cart. Fits the following Vehicles:The two oil pressure switches on the front and rear cylinder heads are attached to the VVT valves that operate the cylinder deactivation system. The sensor t...Advertisement Oil-fired burners are used in many parts of the country as the basic heat source for warm air and hot water heating systems. Most of the home oil systems in use today...2. Disconnect the rocker arm oil control valve connector (A) and the rocker arm oil pressure switch connector (B). 3. Remove the bolts (C). 4. Remove the rocker arm oil control valve (D). 5. Install the parts in the …The automobile fault code P2651 can be caused by low or overfilled engine oil. It can also be caused by using an incorrect engine oil type. Another possible cause is a faulty ‘B’ …Description. The VTEC system activates rocker arm oil control solenoid B by command from the Powertrain Control Module (), and it charges/discharges the hydraulic circuit of the VTEC mechanism that switches valve timing between Low and High.The PCM monitors oil pressure in the hydraulic circuit of the VTEC mechanism using rocker arm …

13-031; MIL ON, DTC P3400/P3497 Set; The front and/or rear rocker arm oil pressure switch may fail intermittently. The same rocker arm oil pressure switch is used for front or rear applications. The vehicle may need one or two switches replaced depending if one or both of the DTCs is/are stored. PROBABLE CAUSES: 1. Check the engine oil level and condition and remedy as necessary. 2. Turn the ignition switch to LOCK (0). 3. Disconnect the rocker arm oil pressure switch 2P connector. 4. At the rocker arm oil pressure switch side, check for continuity between rocker arm oil pressure switch 2P connector terminals No. 1 and No. 2. An oil pressure switch is a simple circuit that turns a warning light on and off when there is a low pressure in your engine. In addition, the switch is grounded when there is no pressure. When the pressure level drops below a certain point, the pressure sensor will signal to the engine computer that it needs to adjust its operating procedures.Labor: 1.0. To diagnose the P2647 Acura code, it typically requires 1.0 hour of labor. The specific diagnosis time and labor rates at auto repair shops can differ based on factors such as the location, make and model of the vehicle, and even the engine type. It is common for most auto repair shops to charge between $75 and $150 per hour.

There’s a separate code (P2646) for the inverse (NO OIL PRESSURE on the rocker arm side of the VTEC valve AND the VTEC is commanded ON. What’s tricky about that? …Dan Dicker, Energy contributor for TheStreet, notes with Jim Cramer the recent turn of political pressure and activity against fossil fuels....XOM Dan Dicker, Energy contributor fo...…

Reader Q&A - also see RECOMMENDED ARTICLES & FAQs. Wiring Issue – P2646 indicates that the . Possible cause: 4. Install the new rocker arm oil pressure switch and the new 0-ring. Torque the switc.