NIStune Feature Pack V.1 - Manual (Page 7)

Page 7 of 27
Diagnostic Potentiometer Removal
Earlier Nissan ECUs are fitted with a diagnostic potentiometer. This will require removal in order to fit the flex fuel
sensor line to the ECU.
Remove the diagnostic connector by unscrewing (or desoldering if surface mounted) and then fit the flex fuel sensor
line in place to the diagnostic input.
Image: HCR32 ECU diagnostic potentiometer