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Topic: Fuel Trims (Read 4919 times)
vdubnation
Turboman
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Fuel Trims
« on: July 18, 2016, 01:38:37 PM »
Why does every car i ve seen lately have a difference in partial banks usually 2%+- between banks.
This is not just 1 car over 10 cars tried swapping injectors , mafs , leak testing , its a pattern . All of them are Stage 3 S4s.
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Jim_Coupe
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Re: Fuel Trims
« Reply #1 on: July 18, 2016, 02:29:28 PM »
I have this on my 3.2VR6T and my non scientific conclusion is that there is a small difference in the banks. If you add all the small things as air leaks+dirty sensor+injector diff+oil leaking from valves and so on you get a difference.
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E85oholic
nubcake
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Re: Fuel Trims
« Reply #2 on: July 18, 2016, 02:59:14 PM »
How does KFBS look?
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Jim_Coupe
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Re: Fuel Trims
« Reply #3 on: July 18, 2016, 04:04:14 PM »
KFBS hmm intressting is this a Bank enrichment factor?
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E85oholic
Jim_Coupe
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Re: Fuel Trims
« Reply #4 on: July 18, 2016, 04:15:15 PM »
Function
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E85oholic
vdubnation
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Re: Fuel Trims
« Reply #5 on: July 18, 2016, 04:36:23 PM »
Interesting i only see 1 Map for KFBS and its 0'd. I even looked at a rs4 a2l only 1 .
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nubcake
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Re: Fuel Trims
« Reply #6 on: July 18, 2016, 05:32:43 PM »
If the difference is always "in the same direction", you can try setting it to something non-zero.
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Jim_Coupe
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Re: Fuel Trims
« Reply #7 on: July 19, 2016, 02:47:34 PM »
Here is mine !
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E85oholic
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