2010 MazdaCX-7 2.3LTurbo- Cyl 3 Miss Replcd Plugs & Coils but still light is on

Sorry for not mentioning before but yes, the ECM was reset right after replacing coils and plugs and after driving a few miles the light came back on.

Ok, does it feel like the engine is actually misfiring .. Jerking or jumping sensation felt while driving at steady speeds?

Yes, but it's intermittent it comes and it goes on Cyl 3.

'Possibly' a fuel injector problem on # 3 .. Recommend further diagnosis - probably need hands-on assistance from qualified personnel with proper testing equipment. Failing fuel injector will mimic ignition misfire!