Hi All.
I did a quick search but couldn't find anything about my issue. My tacho reads different to my ECU Talk gauge by about 150rpm across the entire rev range except at idle where it's spot on. . . . I am guessing the tacho reading can be calibrated by Nissan somehow, but I am surprised at the difference given the signal comes from the same place. the needle sits at zero when the car is off, but as the revs increase the tacho reads higher so at 100kp/h the tacho is showing 2700 RPM but the ECU Talk module is reading 2550 RPM. I was wondering if anyone else has the same issue or can explain it?
Cheers
Andrew