Why does Honda use VCM?

Honda’s Use of Variable Cylinder Management (VCM)
Honda uses Variable Cylinder Management (VCM) in some of its vehicles to improve fuel efficiency while maintaining power when needed. VCM is a technology that allows a V-6 engine to deactivate one bank of cylinders under certain conditions, such as when cruising at a constant speed, to save fuel. When maximum power is required, all six cylinders are employed immediately.
The main purpose of VCM is to optimize fuel economy without sacrificing performance. By deactivating cylinders when they are not needed, the engine operates more efficiently, resulting in improved fuel efficiency. This technology enables Honda vehicles to provide full power on demand while delivering impressive fuel economy.
VCM has been used in various Honda models, including the Honda Inspire, Honda Elysion V6, Honda Accord Hybrid, Honda Odyssey, Honda Pilot, and Honda Accord V6. The specific versions of VCM used in different models may vary, with some models equipped with VCM-1 (3- and 6-cylinder operation), VCM-2 (3-, 4-, and 6-cylinder operation), or VCM-3 (3- and 6-cylinder operation).
While VCM has its benefits in terms of fuel efficiency, there have been discussions and debates about its effectiveness and potential side effects. Some users have reported experiencing engine vibrations when VCM is active, which can be mitigated by the use of active motor mounts. Additionally, there have been concerns about the long-term reliability and potential issues associated with VCM.
Overall, Honda continues to use VCM in its vehicles as a means to improve fuel efficiency and provide a balance between power and economy. However, it is important to note that not all Honda vehicles are equipped with VCM, and the specific models and years that have VCM may vary.
I hope this information helps! Let me know if you have any further questions.

Do new Honda Pilots have VCM?

3.5-Liter DOHC V-6 Engine with Direct Injection and Variable Cylinder Management™ (VCM®) – 2023 Honda Pilot | Honda Info Center.

Which cylinders does Honda VCM deactivate?

Intro to Variable Cylinder Management Technology
The 2005-2007 Honda 3.5L V6 is a VCM-1 engine and only does cylinder deactivation on cylinders 1-3 instead of 1-4 like the VCM-2 engine.

What is the function of VCM in Honda?

This technology enables a V-6 engine to provide full power on demand while also delivering impressive fuel economy.

Is cylinder deactivation bad for an engine?

If the engine is equipped with a cylinder deactivation system, we face a new potential failure mode. Increasing the valvespring pressure or just increasing the amount of lifter movement at speed may be enough to overwhelm the oil pressure keeping the lifter in full operation.

What is the difference between VCM and non VCM?

Answer. Answer: When in VCM mode, the two halves separate, the valves are therefore no longer connected to the camshaft, and the cylinder is “off”. Unlike the Z3, the cam profiles for each intake valve in a given cylinder of the z2 are identical, just as they would be in a non-VTEC engine!

How good is cylinder deactivation?

Gasoline engine cylinder deactivation
In gasoline engines, CDA essentially operates fewer cylinders at higher power providing displacement on demand. It optimizes engine performance by providing full power when required and increasing efficiency when less power is needed.

When did Honda start using VCM?

In the years that have passed since VCM was introduced in the 2005 Honda Odyssey, it has been mostly left to flounder only in a few Honda and Acura vehicles. The technology has been tried before in various forms, by American, European, and Japanese automakers.

Does VCM save gas?

VCM (Variable Cylinder Management) is fuel-saving technology that automatically deactivates 1/3 or 1/2 of the cylinders, according to the driving conditions. This saves fuel and lowers emissions.

Can you disable Honda VCM?

CURRENTLY SUPPORTED MODELS. Position 40,50,60 (Disable VCM) is tunable between different climates. Users who have had to replace CTS sensors will now have a very precise way of disabling VCM as well as calibrating the dash temperature gauge. For cold climates like Alaska, a setting of 35-40 will work in most cases.

Do new Hondas have VCM?

All 2017-2023 Ridgelines have VCM. It’s designed to be unnoticeable to the driver and there’s no setting or button to disable it so there’s no reason to mention it in an owner’s manual. You won’t find any reference to VTEC or Grade Logic in the manual, either, even though your vehicle has these features.