I just realized that the small CEL was probably due to the fuel injectors but the big CEL (1/2 engine light), which was a recent occurrence, was probably due to the dreaded HPFP, hence my car going into limp mode. Considering that I have a 2011, that's disconcerting...didn't they fix it already by then?
In hindsight, those addictives did their job for the injectors but obviously if the pump dies, there's nothing that can be done.
Also wondering for those that had their coils/injectors/HPFP replaced if they have gone trouble-free or any returning prbs? Or too soon to tell? Thx.
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