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DISCUSSION => Engine + Driveline => Topic started by: achtungE30 on June 25, 2007, 02:25:23 PM

Title: Fuel Rail Test Port location?
Post by: achtungE30 on June 25, 2007, 02:25:23 PM

I want to connect a fuel pressure gauge to test and diagnose some issues. Anyone know how to get to the test port?

Title: Fuel Rail Test Port location?
Post by: RED IS 91 on June 25, 2007, 03:05:48 PM

I tested my fuel pressure back under the backseat .I believe
the only other way would be to connect it before the fuel rail .

Title: Fuel Rail Test Port location?
Post by: achtungE30 on June 26, 2007, 08:29:24 AM

Could u point me in the real oem diagram perhaps which fuel line connection is return at the pump?

Title: Fuel Rail Test Port location?
Post by: badboypolar on June 28, 2007, 03:08:04 PM

If you are looking at the engine from the drivers side, the fuel return line is on the left side, the fuel feed is on the right side (closest to the firewall).

Title: Fuel Rail Test Port location?
Post by: RED IS 91 on June 28, 2007, 04:27:26 PM

The curved one in the photo is the supply  I believe. That's where you would check pressure with a fuel pressure guage.

(http://i141.photobucket.com/albums/r73/bogeyman700/fuelpump2.jpg)

Title: Fuel Rail Test Port location?
Post by: kowalski on June 28, 2007, 04:32:13 PM

easiest place would be in the engine bay on the fuel line (not the return line).

Title: Fuel Rail Test Port location?
Post by: RED IS 91 on June 28, 2007, 04:42:45 PM

Quote from: kowalski;28736

easiest place would be in the engine bay on the fuel line (not the return line).

Those fuel lines in the engine bay are not the easiest to disconnect . When I replaced my injectors there was hardly any wiggle room with those lines.