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Help plz

Old Dec 10, 2011 | 01:56 AM
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Im already frustrated as fkk with the damn truck my tuner told me it was leaning out at wot not enough fuel then my truck got to a point where it wouldmt advance past 5000 rpm or so itd b sputtering and choking at wot but normal driving is fine soni bought a walbro fuel pumo same issue happend they told me I used the wrong hose that I had to use my oem plastic hose so I put it and my truck openz up alot better but when I put the towhaul and fkoor it you still hear it sputtering and u see the rpms where they stay then like it hoes away and they start reving up then it sputters again my tuner said the fuel tables were maxed out im at a point of givingup anybody had this issue? Please of so chime in thanks
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Old Dec 10, 2011 | 08:31 AM
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Originally Posted by Jackal1
I'm already frustrated as fkk with the damn truck. My tuner told me it was leaning out at wot, not enough fuel. Then my truck got to a point where it wouldn't advance past 5000 rpm or so. It'd be sputtering and choking at wot, but normal driving is fine. So I bought a walbro fuel pump, same issue happened. They told me I used the wrong hose, that I had to use my oem plastic hose. So I put it and my truck openz up alot better, but when I put the tow/haul and floor it you still hear it sputtering and you see the rpms where they stay, then like it hoes away and they start reving up. Then it sputters again. My tuner said the fuel tables were maxed out. I'm at a point of giving up. Anybody had this issue? Please if so, chime in. Thanks
It took less time to make your post readable, than it took to decipher it in its original form.
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Old Dec 10, 2011 | 09:56 AM
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What's your mods?
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Old Dec 10, 2011 | 11:45 AM
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+1, what mods are you running? It sounds like you might be maxing out your injectors when you try and pin it wide open. Not for sure without a bit more info though.
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Old Dec 10, 2011 | 12:18 PM
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My mods are fbo custom grind cam 4400 stall 5.3
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Old Dec 10, 2011 | 12:44 PM
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Hmmm junk cam & no headers or cai? Your fuel filter plugged up
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Old Dec 10, 2011 | 12:52 PM
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Originally Posted by mhotrodscooter
Hmmm junk cam & no headers or cai? Your fuel filter plugged up
Fbo=full bolt on, headers, cai, pulley, and trust me its not a junk cm, and fuel filter amd plugs were changed about a month ago
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Old Dec 10, 2011 | 12:58 PM
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Ok now we're getting somewhere get a fuel pressure gauge & check psi @ wot.. If its good & you trust your tuner you'll probably need bigger injectors
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Old Dec 10, 2011 | 01:02 PM
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Originally Posted by mhotrodscooter
Ok now we're getting somewhere get a fuel pressure gauge & check psi @ wot.. If its good & you trust your tuner you'll probably need bigger injectors
Thats what ive been trying to do get a fuel pressure gauge to check,
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Old Jun 22, 2018 | 10:39 PM
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7 years later lol...i figured out the issue. two broken inner springs on the driver side head. ended up pulling the engine and selling the truck cheap cheap.
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