Thread: Air leaks with slip fit collectors and EFI causing rich A/F?
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Old 07-14-2021, 05:57 PM
Luce Luce is offline
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Cobra Make, Engine: Lone Star with IRS, 427W with megasquirt, T56 magnum
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I don't run my efi closed loop for this reason.

The most miniscule air leak will considerably skew the wide band O2 sensors readings way lean, and closed loop operation will try to correct by adding fuel.
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