I have never had an engine light come on (yet). I had taken it to a dealer to check it out; I know the codes were checked on and cleared, I want to assume they would have checked the fuel pressure, but you can't always assume they would do something that would be logical. This morning I am going to check the vaccuum hose leading to the regulator when I get it running, to see if the diaphram inside is leaking. Another thing I forgot to include, if the car has sat for an hour, and not gotten completetly cold, it will start, but chug a bit before the idle smooths out.