The HKS VA028 V2.0 is not just a resistor trick; it is a sophisticated, standalone piggyback fuel controller designed in the golden era of tuning. While modern ECU flashes have largely replaced it, this unit remains a favorite for older platforms (like the MR2, Supra, and RX-7) where OBDII flashing isn't an option or where a standalone ECU is overkill.
Positive supply for the meter itself (4V – 30V DC). Thin Black: Negative supply (ground) for the meter. hks-va028-v2.0
Over time, or under heavy temperature fluctuations, the accuracy of digital panel meters may drift. The backside of the HKS-VA028-V2.0 PCB features two small SMD potentiometers (often labeled and I-ADJ ). The HKS VA028 V2
There is another possible match for the VA028 portion of the query, though the hks- prefix strongly suggests otherwise. The part number VA028 is also the catalog number for a , which is a completely different product. Thin Black: Negative supply (ground) for the meter
Units rated for 10A generally have a built-in shunt on the board, making them "plug-and-play" for low-current applications. Common Applications