Installed 2nd pump now down on fuel pres.
09-07-2009, 02:41 PM
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Installed 2nd pump now down on fuel pres. So... I finally got the second pump installed on my car (Now I feel "alittle" better). Anyway... we tested everything, and know the second pump turns on at boost, but I noticed that my fuel pressure is down.
I normally cruise somewhere between 60-62 psi, doesn't really drop too much when I'm getting on it. But now, I'm cruising at about 56, and when i put my foot on it (no boost) it drops to 55 psi. I tried giving the car a few pounds of boost and it went to almost 50.
I've been told that the line we used in the bucket to combine the two pumps is probably leaking, either some how got a hole or maybe leaking around the clamps. Has anyone else had this issue? If so, have there been multiple causes or am I looking at a pretty simple fix.
I normally cruise somewhere between 60-62 psi, doesn't really drop too much when I'm getting on it. But now, I'm cruising at about 56, and when i put my foot on it (no boost) it drops to 55 psi. I tried giving the car a few pounds of boost and it went to almost 50.
I've been told that the line we used in the bucket to combine the two pumps is probably leaking, either some how got a hole or maybe leaking around the clamps. Has anyone else had this issue? If so, have there been multiple causes or am I looking at a pretty simple fix.
09-08-2009, 05:16 AM
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same thing happened to me on a buddies car... when the dual pumps were installed there was a pressure loss, pulled it back apart and found a pinhole in the line.