How does a VTEC oil pressure switch work?
The variable valve timing oil pressure switch is a normally open switch located at the VVT solenoid. When the switch closes, the voltage should drop to zero. This is how the PCM knows if oil pressure was applied to the VTEC system. When this system fails to operate properly the ECM may set a code.
What causes a oil pressure switch to go bad?
Damage to the wiring harness, a corroded plug, or simply an unplugged connection could be the culprit. Once more, it is important to rule out actual low oil pressure by checking the dipstick and listening to your engine.
Why is the oil pressure on my Honda Element so low?
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.
When to change Trand fluid in Honda Element?
ALWAYS CHANGE YOUR TRAND FLUID, EVEN EARLY!!!! Anyone who says dont change it is in the business of rebuilding transmissions 😆 Even VW has slipped with “lifetime” fluid. Sure, that sounds great… unless the lifetime of your transmission is say 10 years!!
What causes check engine light on Honda Element p2646?
It can get dirty and cause P2646. The VTEC system controls the variable valve timing in your Element. It does this by activating the VTEC/Rocker arm solenoid. It uses the Rocker Arm oil pressure switch to monitor the pressure of this system. When the pressure is lower than the solenoid, the check engine light will come on and you’ll get P2646.
What does rocker arm oil pressure switch do?
This code indicates that there is an issue with rocker arm oil pressure switch. 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.