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open loop maf tuning

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Old 12-13-2011, 06:01 PM
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Originally Posted by 02'Z71ONDUBZ'
Your IFR should be the same across the board. I would start by making sure all the injector data is correct
Alright. What do you set the IFR to? As in the 0kpa value or the 80kpa value. I found a calculator online by redhardsupra to find those values. Fuel pressure read 55psi at the rails with the vacuum line unplugged. I'll check the other values as soon as I can get the part number off the injectors.
Old 12-13-2011, 08:24 PM
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Originally Posted by kelsey_canard
Alright. What do you set the IFR to? As in the 0kpa value or the 80kpa value. I found a calculator online by redhardsupra to find those values. Fuel pressure read 55psi at the rails with the vacuum line unplugged. I'll check the other values as soon as I can get the part number off the injectors.
Set them all to the IFR @ 4-bar, which should be your value at 0 kpa. You will have to use that calculator if you want to fine tune them for your actual fuel pressure but the value you have for 0 kpa is the IFR @ 4-bar and should work just fine.
Old 12-13-2011, 09:42 PM
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Originally Posted by 02'Z71ONDUBZ'
Set them all to the IFR @ 4-bar, which should be your value at 0 kpa. You will have to use that calculator if you want to fine tune them for your actual fuel pressure but the value you have for 0 kpa is the IFR @ 4-bar and should work just fine.
Thanks man. I'll try that and let you know how it goes.
Old 12-13-2011, 10:00 PM
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Originally Posted by kelsey_canard
Thanks man. I'll try that and let you know how it goes.
No problem, ideally you want to also adjust the IPW voltage adjustment and small pulse adjust tables as well. Post up when you figure out what injectors your tuning and I'll help you out if I have the data for them.
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