Thanks for all the info. Well the fuel pressure testing proved to be not user friendly since it is a clip in adapter (Toyota over engineering) and not a hose I can clamp on to the pressure gauge so I gave up on that and just took a chance on what it might be based on other users testing, findings and resolutions.
I decided since the fuel pressure reg is in the tank and even if testing proved it was that part or the pump, I would have to go in there anyway so I just spent the money and replaced the reg and fuel pump (since I am in there, they were both original parts with 198k miles) and the fuel filter to complete the entire project.
Starts right up now and runs much smoother. YES!
Tuesday, March 18th, 2014 AT 9:45 AM