My blazer has been idling rough and stalls periodically, the po300 is going off and I’ve replaced the egr valve. Auto zone scanner said the fuel pressure regulator, is there any other suggestions

 

From another thread of yours, I see that you have a 2001 Blazer. In the future, please try to include that in all of your posts requesting technical help to cut down on the work that others have to do in order to provide relevant information to you.

Whenever suspecting fuel supply issues, the fuel pressure & leak-down should be verified to be within spec. The procedure for doing so requires a fuel pressure gauge and a few other items. All of the details are listed in the 2nd Gen Fuel System Diagnosis thread as well as Captain Hook's HOW TO: Check regulated fuel pressure, pump max output, & leakdown thread. Read up, perform the tests, and let us know the results. From there we'll see what we can figure out.

 

So I’ve done more work and rented a fuel pressure test and it stays at 53-58 psi, I don’t know what to do now. Would it be, it doesn’t ever get over 60 but never falls below 50. What should I do next


2001 Chevy blazer