Aloha. I have been reading posts about fuel millage and the fuel pressure regulator. What tests can be performed and what is the cost of this item. I searched and found a warm up regulator for $750.00. Is this what is being talked about?
I also tried to download the manual for a 1991 Seville, 4.9L engine and the site would not let me add the year. Does that mean the 1991 is not available any longer, or is there another place to get one.