how can i connect FT232RL 3.3v spark fun with mpscan and mptune.

[police magnum]

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[ShelGame]

The 3.3v FTDI Basic from SparkFun won't work. Our ECUs use CMOS logic, its true 5v logic. 3.3v won't reliably register as a high. And the 5v our circuit supplies can damage the inputs on the 3.3v FTDI chip.