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.

AIC III Si (Additional Injector Controller)

The HKS AIC III Si is a digital fuel enrichment device that is designed to supply, on demand, the supplemental fuel needed by forced induction vehicles as tuning levels are increased. The AIC III Si is an ideal option for vehicles that require additional fuel, but have factory fuel systems that offer limited expandability. Supplemental fuel is integrated via additional injectors (not included) mounted in the intake stream or on the intake manifold.

FCD (Fuel Cut Defencer)

The HKS FCD is an electronic device developed to properly raise the factory fuel cut level on factory turbocharged vehicles. As modifications are made to optimize engine performance, the factory fuel cut is often triggered by higher boost levels which activate a fuel delivery cut-off as a failsafe procedure. Symptoms of fuel cut are hesitation, bogging, and/or illumination of diagnostic indicators.

PFC F-CON (Programmed Fuel Computer)

The HKS PFC F-CON is a plug-in fuel management system designed to supplement and refine the OEM fuel curve to maintain a proper air/fuel mixture when increasing boost pressure in turbocharged applications. The PFC F-CON optimizes the factory injector pulse width signal by recalibrating information obtained by both the PFC F-CON absolute pressure sensor and the OEM engine control unit (ECU). Each unit is application specific and includes a preprogrammed ROM for a particular performance stage.

PFC F-CON Harness

Vehicle specific wiring harnesses to allow simple plug-in integration of PFC F-CON inbetween the factory wiring harness and ECU.

GCC (Graphic Control Computer)

The GCC is an electronic tuning component which adds flexibility to the fuel tuning capabilities of the VPC, PFC F-CON or F-CON S. It plugs into either the VPC or F-CON harness and allows adjustment of the Air/Fuel ratio in four different RPM Range at five specific RPM points. Each of the five points have an adjustment range of 16% rich to 12% lean, in 2% increments. The GCC interpolates, or average between the RPM points of adjustment to ensure a smooth transition of fuel delivery throughout the RPM band.