VQ37 Flex Fuel Kit

The Specialty-Z Flex Fuel Kit enables your VQ37-powered Nissan 370Z or Infiniti G37 to seamlessly transition between gasoline and E85 fuel blends. This system integrates a Continental Ethanol Sensor and a CAN Flex Bluetooth Analyzer, allowing you to monitor ethanol content via a smartphone app. Two kit options are available: The Naturally Aspirated (NA) version utilizes a modified OEM fuel supply hose with an in-line Continental E% sensor that connects via quick connects. Both kits include the Continental Ethanol Sensor (GM style) and the CAN Flex Bluetooth Analyzer. A key feature is the CAN input option, which connects to the ECU via a single 12V, ground, and E% output pin, avoiding the need to hijack an analog input. However, it is important to note that EcuTek has not yet released CAN input capabilities for their VQ37 tuning suite; therefore, analog input will be required for current tuning. The system can be rewired to utilize CAN once the tuning suite is updated. Users can select either CAN or Analog input via the CANFlex phone app, but both cannot be used simultaneously. Crucially, both the NA and Boosted Flex Fuel Kits require an EcuTek tune for proper functionality. This product is intended for off-road vehicles only. Please verify local and state laws before purchase. Minimum 1050cc injectors are recommended.