NIStune Feature Pack V.1 User Manual
Page 5

Page 5 of 27
Image: Flex fuel sensor connected to fuel return line on S14 200SX
Zeitronix ECA 2
Zeitronix sell a content analyser in various packages, including with and without a display.
http://www.zeitronix.com/Products/ECA/ECA.shtml
The ECA-2 module includes wiring information. For wiring to your ECU Red is wired to the ECUs switched 12V power
line and Black is wired to the Ground line.
Image: HCR32 ECU with two end pins connected to flex converter power