When I took delivery of the Max, it came with standard factory-fitted exhaust pipes which I ran with for almost a year before switching to the sports exhaust. In either case, nothing has changed: the engine management light still came on and stayed on for both [exhaust] systems!
And owners replying on this tread also experienced exactly the same problems as me! Their solution? Replace the troublesome sensor which is what I intend to do after the festive season.
If it was the change in exhaust systems that's causing problems, why would the light behave as it does before the upgrade to the sports pipes?
