Nistune Forums

I run about 16:5 to 1 on my '90 300zx as reported by the pair of WBO2s I use (PLX + Bosch sensors x 2). Once I lean out to about 17:5 to one, the engine starts to miss-fire. I also have the ECUtalk display, and it reports about 9.5 litres per 100km while using the cruise control on a flat road at 10...

I notice there is a soft rev limit feature, but it doesn't seem to do anything in my case. Is this only an adaptation that can be effective as a protective measure for the auto gearbox?? Can it be adapted to be speed orientated in the manual ECUs, so as to allow a rev limit while at 0 km/h, thus ena...