Can you disable Honda VCM?
Honda's Variable Cylinder Management (VCM) system is designed to improve fuel efficiency by deactivating some of the engine's cylinders during light driving conditions. While this technology is beneficial for fuel economy, some drivers have concerns about its long-term impact on engine performance and reliability. In this article, we’ll explore whether you can disable Honda VCM, why you might want to, and how to go about it safely.
What Is Honda VCM and Why Would You Disable It?
The VCM system works by shutting down certain cylinders in your engine when full power isn’t needed, such as during highway cruising. This reduces fuel consumption and emissions. However, some Honda owners report issues such as increased engine wear, vibrations, and oil consumption, which they attribute to the VCM system. These concerns have led some drivers to consider disabling the system.
Is It Possible to Disable Honda VCM?
Yes, it is possible to disable Honda VCM, but it requires the use of aftermarket solutions. Honda does not provide an official method to turn off the VCM system, as it is an integral part of the vehicle's design for meeting fuel efficiency and emissions standards. However, there are tools and devices available that can override the system.
How to Disable Honda VCM
If you’ve decided to disable the VCM system, here are the steps you can take:
- Install a VCM Disabler: Aftermarket devices, often referred to as VCM disablers or VCM muzzlers, can be plugged into your vehicle’s wiring harness. These devices trick the engine control unit (ECU) into keeping all cylinders active at all times.
- Reprogram the ECU: Some professional tuners offer ECU reprogramming services to disable the VCM system. This method is more permanent but requires expertise and may void your warranty.
- Monitor Engine Temperature: VCM disablers often work by maintaining the engine temperature within a range that prevents the VCM system from activating. Ensure your cooling system is in good condition to avoid overheating.
Things to Consider Before Disabling VCM
Before you disable the VCM system, keep the following in mind:
- Warranty Implications: Disabling the VCM system may void your vehicle’s warranty, so check with your dealer or manufacturer first.
- Fuel Efficiency: Disabling VCM will likely reduce your vehicle’s fuel efficiency, as all cylinders will remain active at all times.
- Legal and Environmental Concerns: Modifying your vehicle’s emissions-related systems may not comply with local regulations, so ensure you understand the legal implications in your area.
Conclusion
While it is possible to disable Honda’s VCM system, it’s important to weigh the pros and cons carefully. If you’re experiencing issues that you believe are related to VCM, consult with a trusted mechanic or auto service professional to explore your options. At Kevin’s Autos, we’re here to help you make informed decisions about your vehicle’s maintenance and performance. Feel free to reach out to us for expert advice and services!
Frequently Asked Questions
Can Honda cylinder deactivation be turned off?
I know you can buy a switch that by-passes it and essentially turns it off the cylinder deactivation system but it's not problem-proof and can cause error codes to pop-up. I haven't seen anyone mention that the S-VCM system can cause error codes to pop up, and that device has been around the block for a while.
Can you turn off a Honda VCM?
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.
Is it OK to use sport mode all the time?
When to Use Sport Mode. Sport mode is most useful when you want to explore your automobile's full performance capabilities. Since this setting will likely make the throttle response sharper, the steering heavier, and the suspension not quite as comfortable, you'll want to avoid using it while commuting.
Does sport mode deactivate VCM?
It does not directly disable the VCM however due to the fact sport mode tends to keep you in higher rpms it's less likely to activate and probably won't stay activated long.
Can you disable cylinder deactivation?
Unfortunately, optimizing the system requires that we adjust the triggers that make us step from all cylinders to shut-off mode and back again. Looking at popular aftermarket tuning software options, there are several ways to disable the system, based on rpm, VSS, gear, voltage, run time, and more.
How do I permanently turn off Eco Start Stop?
While the Mercedes-Benz ECO Start/Stop System cannot be permanently disabled, it can be turned off each time you start your car. Follow these three steps: Locate the black button with a white capital “A” encircled by a clockwise arrow. Press the button to turn off ECO/Start Stop System.
Is cylinder deactivation bad for your engine?
Is Cylinder Deactivation Bad? Engines can benefit greatly from cylinder deactivation. When paired with early or late intake valve closing technology, cylinder deactivation can help reduce fuel consumption by approximately five to 25% while maintaining high operating temperatures at low load conditions.
What years did Honda use VCM?
Vehicles equipped with VCM
2005-10 Honda Odyssey (USDM) - EX-L and Touring Models only (J35A7) - 2005-2007 models are equipped with VCM-1 (3- and 6-cylinder operation) - 2008-2010 models are equipped with VCM-2 (3-, 4-, and 6-cylinder operation).
How do I turn off eco mode on my Honda Pilot?
Econ mode is activated by pressing the Econ button located to the left of your Honda's steering wheel. If the green leaf on the dash is illuminated, this means that Econ mode is turned on, otherwise, when the green leaf on the Econ button does not bright, the Econ mode is off.
What year did Honda start using VCM?
2006: Revised exterior styling with new bumpers, headlights and taillights. A new two-wheel-drive model received Variable Cylinder Management™ (VCM®), Active Noise Cancellation™ (ANC), Honda's Active Control Engine Mount (ACM) system and the new i-VTEC® valvetrain system.
