Won"t hold fuel pressure?

Brent · 08-29-2008, 02:24 AM

How are you pressurizing the system? I'm not familiar with the how the FSM says to pressurize the system. I prime the system mostly by just turning the key to the on position which will cut the fuel pump on for a couple of seconds or by using the diagnostic box. How fast is the pressure dropping? Is this a stock fuel system? Mine did this when I had an injector that was stuck open. I would prime the system, and after a minute or two it would be back at 0psi

0110-M-P · 08-29-2008, 07:18 AM

The first thing I would do is pull out the injectors and make sure all the o-rings are good. If they are and all of the lines to and from the fuel rails look good then send the injectors off to be tested to make sure they are not sticking open like Brent said.

08-29-2008, 02:24 AM	#1
Brent Sua Sponte Join Date: Feb 2008 Location: Killeen, TX Posts: 839 Rep Power: 18	How are you pressurizing the system? I'm not familiar with the how the FSM says to pressurize the system. I prime the system mostly by just turning the key to the on position which will cut the fuel pump on for a couple of seconds or by using the diagnostic box. How fast is the pressure dropping? Is this a stock fuel system? Mine did this when I had an injector that was stuck open. I would prime the system, and after a minute or two it would be back at 0psi __________________ Road Atlanta August 2011 NASA TT 1:33 http://www.youtube.com/watch?v=IFY00PAK_Ps Traqmate's video of my car from the 2011 UTCC at VIR http://www.youtube.com/watch?v=2Zcn6...layer_embedded Video of Yellow LS1 FD at NASA TT at VIR http://www.youtube.com/watch?v=e6k0lJkcwrM

08-29-2008, 07:18 AM	#2
0110-M-P Avid Installer Join Date: Mar 2008 Location: Raleigh, NC Posts: 71 Rep Power: 18	The first thing I would do is pull out the injectors and make sure all the o-rings are good. If they are and all of the lines to and from the fuel rails look good then send the injectors off to be tested to make sure they are not sticking open like Brent said. __________________ 1993 T04Z BB RX-7 1983 RX-7 GSL M-P Racing Project Blog