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Hesitation issues...Fuel pump going out?
Hey all, what are the signs and symptoms of a fuel pump going out?
Here is my problem, I have having some hesitation/power loss issues, at mid-to-full throttle, almost like the car is starving for fuel. Boost is fine, it never flucuates on my gauge, and as far as I can tell no leaks. So my thinking is the problem must be fuel/spark related. So far I have done the following:
Changed spark flugs and fuel filter, cleaned MAF, reset ecu, used fuel injector cleaner.
The problem is worse when its cold outside, when i reset the ecu its better but only for like a day then the problem returns.
My car is a 03' bugeye with the following mods:
cobb accessport running the stage 2 91 octane map, catless bellmouth downpipe, k&n drop in filter. My problems started shortly after going stage 2.
So my thinking now is that maybe the fuel pump is just not able to keep up with the demands of stage 2? The car runs and idles fine, its just when I increase the throttle past the 1/2 way point. So my next guess is to replace the fuel pump and see what happens.
Any thoughts??
And now a fuel pump question, should I replace mine with a stock unit, or with a walbro pump? I have no plans of changing injectors ect, will the walbro unit run fine on my stock fuel system? Any help/thoughts would be appreciated. Thanks!
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