power loss around 4k

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12-06-2007, 10:21 PM

killerB16A

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power loss around 4k

ok heres the deal.....i just changed the fuel pump "walbro 255" ,fuel filter, spark plugs, and oil. i have msd cap and rotor with the msd coil. im running dsm injectors and has been tuned on chrome. can anyone help me why i loose all power when crusing in 4th gear at around 4k. only when i give it a little gas and start seeing boost it looses all power!

oh its a d16z6 with a 14g turbo running 7psi

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12-07-2007, 05:35 AM

killerB16A

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Re: power loss around 4k (killerB16A)

bump......anyone?

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12-07-2007, 05:37 AM

djessenz

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Re: power loss around 4k (killerB16A)

What is your exhaust setup? If you have a cat, maybe it's clogged?

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12-07-2007, 05:59 AM

-Gary-

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Are you sure your new fuel pump isn't failing? Do you have a pressure gauge?

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12-07-2007, 05:54 PM

killerB16A

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Re: (-Gary-)

i dont have a fuel pressure gage. has anyone had any problems with a walbro fuel pump? and i had the car tuned on the stock fuel pump and ran great for about 2 years then i replaced it with a type r pump i still had this problem, so i went and got the walbro pump. and i have 2.5 front to back with a test pipe.

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