How do you check a VTEC oil pressure switch?

To test for continuity on the vtec switch, set the meter appropriately (like picture) and touch one lead to each of the two pins on the vtec switch itself. To test for continuity of the vtec circuit in the ECU, you woud touch one lead to each of the pins in the unplugged wiring harness.

Will VTEC work without oil pressure switch?

Yes, until you replace the switch, VTEC will not work at all.

What happens when oil pressure switch fails?

2. Oil pressure gauge or warning light malfunctions: Depending on how the device fails, a faulty oil pressure switch may cause the oil pressure warning light to be on all the time, or not function at all. A failed sender may cause the gauge to be pegged at high, or not function at all.

What can cause VTEC not to work?

Dented oil pans, cracked oil pickup tubes, insufficient oil, old or contaminated oil or thinned out oil can all cause your VTEC to fail.

What does the VTEC oil pressure switch do?

VTEC stands for Variable Valve Timing with Electronic Control. The variable valve timing oil pressure switch is a normally open switch located at the VVT solenoid. When the VTEC oil pressure switch closes, the voltage should drop to zero. This is how the PCM knows if oil pressure was applied to the VTEC system.

How do you bypass an oil pressure switch?

To bypass the low oil pressure switch, simply remove the wire from the switch, and tape the wire so it can not touch ground. The switch works by allowing a ground through the switch to disable the ignition. If it can not ground out, it can not disable the ignition.

What causes VTEC not to engage?

A lack of oil pressure, enough oil or similarly related lubrication issues can cause problems with your VTEC system. Without a proper pressure reference, your big VTEC cam lobe will never get going. Without the right level of oil pressure, VTEC doesnt work.

What is the pressure switch on a Honda p2647?

P2647 HONDA | Rocker Arm Oil Pressure Switch Circuit High Voltage | The VTEC system activates the rocker arm oil control solenoid (VTEC solenoid valve) by command from the engine control module (ECM)/powertrain control

What are the common causes of code p2647?

What are the common causes of code P2647? 1 Low engine oil level or oil pressure condition 2 Defective VVT/VTEC pressure switch 3 Faulty rocker arm actuator 4 Broken or loose rocker arm 5 Open/shorted wiring/connector in the rocker arm actuator circuit

What can set the p2652 code on an engine?

The most common problem that can set the P2652 code is the engine oil. Before replacing any parts change the engine oil with the factory recommend oil weight. The factory bulletin suggests that replacing the VTEC oil pressure switch (P/N 37250-PNE-G01, H/C 6737217) take care of the problem.

Is there a p2646 code for a Honda Element?

Finally just pulled the oil pan with the upper components taken off, cleaned the oil passages, painted the rusty oil pan with spray on undercoating, put everything back together, been fine ever since, no more P2646 or P2647 codes since, revs well, runs well, Goes like stink from a skunk farm now. My opinion.

Is there an easy fix for the p2647 error code?

It is a relatively inexpensive method to help clear sludge from your engine and has been known to eliminate the P2647 issue. No signal getting to the VTEC – Vehicle feels ‘gutless’ at high RPM