HKS A/F Knock Amp description
HKS A/F Knock Amp
The HKS A/F Knock Amp is an electronic monitoring device that displays two of the most vital engine conditions for tuning; engine knock and air/fuel ratio. Engine knock occurs when there is abnormal combustion knock as detonation; which can rob power, reduce engine longevity and even lead to catastrophic failure. The A/F Knock Amp utilizes the factory knock sensor, allowing you to monitor in real time engine knock visually and audibly via earphones (not included). By adding the optional HKS wide-band O2 sensor, air/fuel ratio can be monitored visually on the back-lit LCD display. A warning function can be set for both engine knock and air/fuel ratio where an audible alert sounds if the preset warning is reached.
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