Quote:
Originally Posted by F360C
I am going to look into this.... thanks for the link!
At the very least the car could probably use a new pump/filter. I have never changed the pump and had the car since new so I am sure its getting a bit tired. The fuel filter is integrated with the pump so i am sure that needs a change too after 86K miles
I'll also do some data logging this weekend and see if I confirm it is fuel starvation.
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So for awhile this issue went away but it came back this weekend at Pocono while running their mega track configuration. It was happening consistently on the two straights where I would be down shifting from 5th to 4th and then rolling back on the throttle. Both turns are high speed/high G right hand turns. After I would downshift to 4th and get back on the gas the car would sputter and sound sort of like when the traction control kicks in on my 911 Turbo or a motorsport grade TC system where it cuts spark. Before when I got this issue on high g turns it would cut power hard but this time it was like it was just misfiring. The funny part is there is some other high speed turns there but I was not getting the misfire.... it seemed to only happen after I had done a run through 3rd/4th/5th on the stirghts and then was downshifting to 4th. Fuel level didnt matter... full tank and 1/4 tank it did the same thing.
I never changed the pump/filter and I just clicked over 90K miles so that is going to be the first course of action along with getting the injectors cleaned. I'll let everyone know if I find the pump not attached correctly.