Just a quick question to doublecheck my diagnosis. I hooked up a fuel pressure gauge to schrader valve on the fuel rail and there was no pressure (zero). When I turned on the key, the pressure went up to about 10 pounds and then went immediately back to zero (the pump only ran for a few seconds). When the car is running the pressure stays at 20 pounds, and yes it takes about 10 seconds of cranking to start it. I think this sounds like a bad pressure regulator, what do you guys think?
PS: the symptom that caused me to start diagnosis was the car sputters and dies when you step on the gas enough to get the boost gauge to the "0", or straight up position. The car seems to idle fine. Before you ask, new plugs and wires, new TPS, MAF sensor cleaned, one new oxygen sensor. It was misbehaving before those were changed but I wanted to get the obvious out of the way (and clear the codes for the O2 sensor).
PS: the symptom that caused me to start diagnosis was the car sputters and dies when you step on the gas enough to get the boost gauge to the "0", or straight up position. The car seems to idle fine. Before you ask, new plugs and wires, new TPS, MAF sensor cleaned, one new oxygen sensor. It was misbehaving before those were changed but I wanted to get the obvious out of the way (and clear the codes for the O2 sensor).