[keithmac]

You do have an extreemly strange fault, almost between the points where the ecu wants to correct to stoich, or go into lean cruise mode (16.8:1) maybe trying to correct to stoich with fuel trims while reading the lean spot off the fuel map?.

Shame you can`t just hit the 2800 rpm range specifically, but I didn`t add anywhere near 30% fuel to correct mine..