Hi Steve,
My plugs aren't that old .. but that's the next step I'll be taking care of .. also my car has been sitting for quite some time .. but old fuel is gone, new filter installed and cleaned injectors and topped up with new petrol ..
Last time I checked the plugs, they indicated that car is running rich .. but I need to check again ..
Also, I might be adding a fuel pressure regulator.
However, my main issue is check engine light is on and I'm not getting any diagnostics blinking.
Would appreciate if you let me know if you manage to find a solution for your problem