Okay, I checked it again with a Tech II and the same result.
Okay...I have just yesterday put a Regulator on the CP3 pump. (Took about 1 1/2 hours) What else is there to check? What about the valve at the end of the fuel rail on the drivers side? What is it called and how can I check it?or would it even be a possibility that it might be dropping the pressure. Again now this is the testing that I have done: With the Tech II connected, IN park it will build up to around 15000psi. Then driving: when desired reaches 17k 18k 20k, and higher the actual will drop to 3k or so... Am I missing anything before I spend the money and the time to put a new reman CP3 pump on it? Somebody help a fella out!!!!!