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Question on possible Fuel cut?

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Old 09-10-10, 09:53 PM
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Question on possible Fuel cut?

OK i have a 93 fd. Everything seems to be running fine until im running down the road in like 3rd or 4th and start to build boost and it pops once i get up to about 10 to 15lbs of boost! It almost feels like its fuel cutting but i have no idea why? Ive checked everything i know to check any ideas? Heres my build list if it will help>


TUNED BY STEVEN KAN
Stage 3 large port motor built at RX-7 Store in Ohio.
To4z Single Turbo
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Old 09-11-10, 07:22 AM
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Post a datalogit run.

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Old 09-14-10, 12:57 PM
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Originally Posted by sncracing1
OK i have a 93 fd. Everything seems to be running fine until im running down the road in like 3rd or 4th and start to build boost and it pops once i get up to about 10 to 15lbs of boost! It almost feels like its fuel cutting but i have no idea why? Ive checked everything i know to check any ideas? Heres my build list if it will help>


TUNED BY STEVEN KAN
Stage 3 large port motor built at RX-7 Store in Ohio.
To4z Single Turbo
Greddy FMIC
AEM Methanol Kit
Twin 255 Fuel Pumps
GM 3 Bar Map
HKS Twin Power Ignition
AEM Wideband
Apexi Power FC with Datalogit
850-1600 Injectors
Aeromotive FPR
KG Parts Fuel Rails
Extreme Fuel System
HKS Carbon/Titanium Catback
Megan Racing Aluminum 4 Core Radiator
Snipes Wastegate
HKS SSQV BOV with upgraded fin
Greddy Electronic Boost Controller
How full is your tank when this happens? If Steve tuned it on the dyno and it didn't have this issue and now it does, I would bet that it's because you have a 93 with "fall apart" fuel tank baffling and when your fuel level is low the pump pulls in air under hard acceleration.

-J
Old 09-15-10, 12:13 PM
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What does your wideband 02 read when this happens?
Old 09-15-10, 01:26 PM
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is the fuel pump straight to a relay?
Old 09-16-10, 10:05 AM
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Originally Posted by Gorilla RE
How full is your tank when this happens? If Steve tuned it on the dyno and it didn't have this issue and now it does, I would bet that it's because you have a 93 with "fall apart" fuel tank baffling and when your fuel level is low the pump pulls in air under hard acceleration.

-J
Ok so I was like at a quarter of a tank or smaller how do I check this fuel tank thing bc I filled it up and now its fine!
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