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Discussion Starter #1
Hey guys I've searched and searched the forums for some insight on this issue. So I'll be as descriptive as possible.

A few weeks ago my gas gauge stopped functioning, didnt think anything of it. Week later I got into boost in 2nd gear, and at 5I rpms it lost all power for about 3-5 seconds and then continued through the rev range. This was a repeatable thing at 5k rpm in 2nd gear and repeatable at 6k in 3rd gear. I pulled into a gas station and filled it up, it only took around 5 gallons and the issue went away, fast forward 2 days and I was hitting a corner pretty aggressive and in the Apex of the corner it did the cut/hesitation. I did the thing where you check the ecu and I got code 55 (no malfunction) heres a few things I've considered could be the problem.

Weak fuel pump
Failing Fuel pressure regulator
Clogged injector
Dirty or failing maf
Or just some sort of extreme sloshing issue.

Any advice would be helpful thank you.
 

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The original pumps are getting rather old. For how much a new GOOD fuel pump costs its worth replacing if you are concerned.

Your symptoms could be down to a couple of things, crap fuel, fouled plugs, dodgy o2 sensor(s) dry joints or old wiring harnesses, take your pick.

I had a very similar issue, which after replacing plugs coils filters wiring both o2's and fuel pump, it turned out to be the god damn ecu!
 

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Discussion Starter #4
Also it may be worth pulling the pump out to make sure something isn’t physically broken. This could affect both your gauge sender and fuel pick up.
I fixed it, the pump was loose in the tank, I slide the cradle back into its designated spot, the fuel pump sloshing caused it to dislodge the sender unit wires so now noth problems are fixed
 
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