How fast can a fuel pump die?
#1
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How fast can a fuel pump die?
I think I just lost my fuel pump. The only other variable I changed tonight was the switch to a DIY dual feed fuel rail. Anyone have other ideas? Did I lock an injector closed?
I had to add a little fuel to the 212kpa cells on the first pull I made, and the 128 and 156 cells seemed very lean, so I had dropped back to wastegate boost and was tuning those when I lost fuel on a pull. I smacked the throttle and the wideband snapped to 16:1+. The pull before it was a litttle lean, high 12s low 13s but I hadn't tuned those cells since installing the test pipe so I don't know what caused it.
I had to add a little fuel to the 212kpa cells on the first pull I made, and the 128 and 156 cells seemed very lean, so I had dropped back to wastegate boost and was tuning those when I lost fuel on a pull. I smacked the throttle and the wideband snapped to 16:1+. The pull before it was a litttle lean, high 12s low 13s but I hadn't tuned those cells since installing the test pipe so I don't know what caused it.
#6
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35psi at idle - and not a single bit more, ever. 5000rpm in 1st gear, wideband at like 18:1, 35psi of fuel pressure. Swapping pumps now.
Edit: Scratch that, just pinched the return and jumpered the fuel pump. Rose to 75psi right away. I am swapping the FPR now.
Edit: Scratch that, just pinched the return and jumpered the fuel pump. Rose to 75psi right away. I am swapping the FPR now.
Last edited by Savington; 01-09-2009 at 04:50 PM.
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