HONDA'S VCM/ECO SYSTEM HAS A HISTORY OF COSTLY ENGINE PROBLEMS.
In 2013, Honda faced a major class-action lawsuit involving approximately 1.6 million vehicles equipped with its 3.5L V6 Variable Cylinder Management (VCM) system. Owners reported excessive oil consumption, repeated engine misfires, and premature spark plug fouling—problems that resulted in extended warranty coverage for certain vehicles, but no universal mechanical fix. Unfortunately, earlier 2005–2007 models were excluded from the settlement, despite owners reporting similar problems. Across multiple generations, VCM operation has been associated with excessive engine vibration, accelerated wear of active engine mounts, and oil consumption reported as high as one quart every 1,000 miles. Why wait for expensive repairs? VCMTUNER provides a practical way to disable VCM operation on compatible Honda and Acura vehicles, helping owners avoid the unwanted effects of cylinder deactivation. Take control of your engine. Disable VCM with VCMTUNER.
THE END OF VCM PROBLEMS FOR YOUR HONDA OR ACURA. INTRODUCING VCMTUNER. PLUG AND PLAY.
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Simple 5 Minute Installation
We provide videos and instructions on installation. Can be removed within minutes when taking into the dealership to avoid warranty concerns. Watch Installation Video.
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Works in all Climates
Unlike single resistor solutions, our dial allows fine tuning to minimize changes to the temperature gauge while disabling VCM/ECO mode. No resistor plug to swap when the weather heats up. Just turn the selector switch a notch clockwise in summer. Turn it counter-clockwise a notch when winter comes back around. Update : VCMTUNER II requires zero adjustment and is fully automatic using a microcontroller. See product for more details through the 'BUY' link.
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Increase Reliablity and Save Costs
Save thousands of dollars over the lifetime of your vehicle by stopping VCM-related damage at the source. Disabling the VCM instantly improves long-term reliability and protects your engine from premature piston ring wear, excessive oil consumption, fouled spark plugs, plugged catalytic converters, and torque converter failure. It also saves you from the frustration of replacing expensive active engine mounts every 50,000 miles. Best of all, the VCMTUNER II is the only standalone VCM controller with official CARB E.O. Approval, making it fully 50-state legal.