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I'm aware the the pulse width/duty cycle changes and allows more fuel to pass through the injector...I'm just trying to figure out what has changed....I distinctly remember the fuel pressure going up when I went WOT....now it drops...and breaks up....as far a a pump and voltage, Bill and I installed a racetronix pump with the hotwire kit. I'm not worried about either of those. I'm probably just going to check all the lines at the pump assembly and make sure everything seems to be alright when I replace the regulator. As far as mileage my car up there....so I wouldn't be surprised if it's just a stupid part that has gone bad over time. I just hope this is a step in the right direction....
Also with the difference in FP, my tune is most likely off. Being injector flow rate changes with the different pressure.
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