I think my injectors are leaking down into my engine ( I smell gas in my oil)and loses almost all pressure in one hour. I searched the site for the procedure and still confused. Do I clamp off both fuel hoses? The top line is the fuel feed and the lower is the fuel return right? I wanted to test it first before I pulled the fuel rail off and checked it that way. Also I just wanted to say Thank-You for everone's help here and that this is a great site for info and the people are very knowledgable. Esp. since they helped a dumba$$ like me get this far Thanks, Guys

 

OK, I turned the key over to prime up the system and it was at 35psi Well I pinched both lines and it went to 40 psi and after 20 min I did not loose pressure, However I took both vise grips off and primed up the system and pinched off the top line (the one that gose to the top of the fuel rail) as soon as I pinched it it went from 35 psi to 40 psi as soon as I took the vise grips off it went down to 15 psi Why? I did the same step to the lower line it started at 35 psi pinched the line and it stayed to 35 psi and when I took the vise grips off it also stayed at 35 psi. Which line on my 87 Is the feed and which is the return? Since I did not loose any pressure with both pinched I'm assuming the injectors are fine. Right? But what about the AFPR could that be the problem? I know I have gas in my oil I just can't figure out why. Please help