Thank you very much for that info.
I will get a compression test done, check the 02 sensor as you have described, do a fuel pressure test and post my results.
One other thing....The part number I was given for the fuel pressure regulator is 000 078 03 92 and it is very expensive.
Would you please verify that I have the right part number and possibly tell me the price you have found , since you said that it was cheap and to go ahead and replace it.
Thank you in advance.