Originally Posted by redmaro1
I haven't checked the Fuel pressure with the engine off and key on. If it reads low with the engine off would that rule out a bad fuel pressure regulator?
I may have led you astray a bit, as I just now looked in the limited '96 to '98 sources and find that the Cobra (and maybe the GT too) have return type fuel systems--I think I know that in the back of my head somewhere but it seemd to get stuck...
Because of that the fuel pressure specs I listed are likely incorrect as they are for the returnless system, which provides much more precise pressure regulation.
In answer to your question, in a retun type system low pressure at idle would be indicative of a bad regulator, or fuel pump. Perhaps someone with a '98 shap manual can provide the pressure specs for your car.