Problems with fuel. Car buck at high rpm

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jjsz32racing
Posts: 5
Joined: Sat Sep 22, 2007 8:32 am
Car: 95 nissan 240sx

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I have SAFC gen 1 walbro 225 fuel pump Z32 fuel filter S14 Blacktop in 95 240. car seems like it runs out of fuel. I have safc tuned 30 percent and up on fuel curve car sputters and bucks at high rpm and especially high boost help me out cant figure it out could it be (mafs)

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r3v_v3ng3
Posts: 868
Joined: Sat Feb 24, 2007 7:53 pm
Car: 91 fastback ka-t

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are you using a wideband O2 sensor to monitor a/f ratio?
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