[rfmaster]

Originally Posted by irongun324

Well it "seems" better, as far as idling goes. Definitely still no throttle response though. Even just trying to rev the engine in park, it's not smooth.

Any suggestions on ways to test other things: diaphram, spring, or just fuel pump altogether?

I'm assuming I have to drop the fuel take to get to the pump? I see no access panel inside the back.

Before dropping gas tank for fuel pump replacement I would check fuel pressure. This can be done by removing fuel filter and inserting a test T with a fuel pressure gauge. Based on your symptoms I am going to venture and say that you are running 5- 6 psi. With engine idling, take a look at a fuel spray coming from injectors. If it looks like it contains large droplets then it is indicative of a low fuel pressure. With normal fuel pressure (9 to 13 pSI) there should be no large drops - a fine fuel mist should be hitting bore side walls.

//RF