No Hoper
I think your ‘2’ should be: Mixture not rich enough, ROP, or not lean enough LOP. 4 should be amended accordingly.
Re your 3: How many standard piston aero engines have cams that you can ‘dial’?
5: Partially blocked injectors (resulting in a ROP mixture that’s not rich enough. Really a subset of 2.
6: Fuel enrichment function disabled during climb (throttle should be set to ‘full’ on engines with FCUs with this feature.
7: RPM reduced at high powers (moving PPP close to TDC).