GT1R Gen 2 Flex Fuel Kit, Electronics Only
GT1R Flex Fuel Converter with PNP wiring harness. Converts digital signal to 0-5v singal and sends signal in to secondary MAF connector for OE ecu flex fuel tuning. .5v = 0% ethanol – 4.5v = 100% ethanol.
Details
Frequently Asked Questions About GT1R Gen 2 Flex Fuel Kit
What is the function of the GT1R Gen 2 Flex Fuel Converter?
Most ethanol sensors output a digital frequency signal, which the stock R35 ECU cannot read directly. This converter changes that signal into a 0-5v analog voltage compatible with the factory computer.
How does the converter scale the voltage for ethanol content?
The device uses a linear scale for tuning precision: 0.5 volts corresponds to 0% ethanol content, while 4.5 volts indicates 100% ethanol. This allows the tuner to create accurate blend maps.
Where does this kit connect to the vehicle's wiring?
The kit features a Plug-and-Play (PNP) harness that connects directly to the secondary MAF sensor connector. This repurposes that input for flex fuel data without cutting factory wires.
Does this kit include the ethanol sensor and fuel lines?
No, this is the 'Electronics Only' package. It is designed for customers who already have the plumbing and a standard digital ethanol content sensor but lack the signal converter for the ECU.
Do I need a custom tune to use this flex fuel converter?
Yes. The ECU must be calibrated (via COBB or EcuTek) to recognize the voltage input on the secondary MAF pin as ethanol percentage rather than air mass, or the car will not run correctly.
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