Product Description Fits all V6 and V8 General Motors (GM) active or dynamic fuel management vehicles, includes cars, trucks, and SUVs. How to Install KVAC AFM Disabler? STEP – 1: PLUG-IN Take out the AFM disabler out of the box and find the diagnostic port. Disconnect your battery. Plug the KVAC device in it. STEP – 2: CHECk the blue light After plugging the device in, the blue light turned on. It's the indication of the device being connected. If you do not see the light at all, then check if the OBD-II fuse is okay or not. STEP – 3: start the engine When the vehicle started, the instrument panel will show V8. Enjoy the running and unplug the device if you will not drive the vehicle for a few days. Note: The device is currently NOT compatible with 2019+ Silverado and Sierra models equipped with 5.3L / 6.2L motors and 10-speed transmissions.
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