[AllHailKingVolvo]

It appears that we have something of a breakthrough! I took the 940 on the school run this morning (mainly to give the injector cleaner a chance to work through the system), and with the fuel filter change and Forte in the tank, it feels much improved.

There is still a slight unevenness under heavy load but nothing out of the ordinary compared to my other Redblocks. The car has plenty of power on tap and throttle response is much improved.

I think with the new CTS, CPS and possibly a new Lambda sensor at some point soon, it will be as close to perfect as its going to get.

Knowing the relative shortcomings of the ignition system, it makes me tempted at some point in the future to try out a wasted spark conversion. I do quite a few miles, and the proposed MPG gains would pay for the system within a year, plus smoother running is always appealing!