Skip the auto shop - Our mechanics make house calls

Q: VTEC not engaging.

asked by on

VTEC does not engage.

A: Hi there, The Honda VTEC system relies on ...

Hi there, The Honda VTEC system relies on two main electrical components to function properly. One of these components is the VTEC oil pressure switch which tells the engine computer that the oil pressure is sufficient for VTEC operation. The other component is the VTEC solenoid which engages the VTEC system. To diagnose the system you may want to enlist the help of a mechanic, such as one from YourMechanic, who will have the necessary scan tool to be able to read the fault memory of your engine computer. This will save you time and lead the diagnosis to the proper component or components to be tested.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Save up to 30%

Get a quote

What others are asking

Q: Parasitic load on battery.

Cars basically use the battery at start up. Once the vehicle is running the alternator takes over and provides the car with the electricity it needs to run. If the alternator stops producing the electricity the car needs, the car...

Q: Car is losing power and the temperature gauge reads high.

Hello. From what you've described, most likely, your engine has had a head gasket failure, perhaps because of a failed thermostat - which could cause the "temperature way up, then backs off" cycle you describe. A failed head gasket means...

Q: Transmission slipping when I drive

Hi there. When your model Civic begins to experience this it it is the first sign of transmission failure. The transmission fluid needs to be checked to see if it is at the right level. If it is check the...

Related articles

What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...