Originally Posted by drewglenn04
The only place i have found the fuel pressure regulator is on partsbin.com and it says its a universal part. The alcohol could be an issue too. i might try regular gas for a while just to see before buying a new regulator...
Check your fuel pressure on the rail before you replace the regulator.
Had the same problem, turns out I had an injector that had something causing it to leak just enough fuel into the cylinder causing a drop in pressure on the rail. a couple of cans of injector cleaner and a couple of tanks of 93 octane fuel, problem solved for me.
Always try the cheap fixes before you start spending a lot of money.