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Efilive COS help

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Old Aug 28, 2015 | 10:38 PM
  #1  
Isak81's Avatar
Isak81
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Default Efilive COS help
Truck runs pig rich in boost. ID 1000 injectors and walboro 255.
Have it commanding 13 to 1 afr right now and still pegging the
wideband full rich. Can someone look at my tune?
Attached Files
File Type: efi
Log_0006.efi (272.6 KB, 116 views)
File Type: ctz
AfterCos_0008.ctz (451.2 KB, 103 views)
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Old Aug 28, 2015 | 10:49 PM
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From: JunkYard
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What is your fuel pressure at?

Is it still return style?
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Old Aug 29, 2015 | 10:51 AM
  #3  
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Fuel pressure is 50ish at idle and jumps to 60PSI in boost. I am looking at the FPR today.
Its return style. I was told to change B4001 to a straight line vs the sloping line I have now.
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Old Aug 29, 2015 | 01:44 PM
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From: Dallas
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Yes return type the IFR should be the same for all, not sloped as for the returnless systems. This is likely the cause of your problem.
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