[Mikey]

Thanks guys. A little more info:
No CEL lit. Will have to check if there are any codes when I can get a scanner.
Was told Corey disabled the secondaries. Car is always in "full power" mode.
Fuel level at 50%.
Regarding O2 sensors I had just left the house so wouldn't it still have been in open loop and ignoring O2?

Understand fuel/air/spark. From experience this seems most likely to be a sensor issue like TPS or MAP perhaps but for sure I will check out fuel pressure and also spark plug conditions. I also have an ignition scan tool I can read strength at the wires or coils so I will try to do that. Unfortunately much of my stuff is still in boxes from the move and maybe a year from getting my garage situation sorted.

Thanks all for the thoughts below and Paul especially for the target numbers to look for during diagnostics.

Cheers,
Mike