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5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
^^^the computer will not automatically delete the egr....and yes it will throw the cel light.
and yes i ran one and no cel light and no it will not make it faster.....
The computer does delete/bypass the EGR function as soon as an EGR failure code is logged automatically. That is how the FMEM logic works when EGR failure codes are registered. Code 33 (EGR detected not opening) will not cause the CEL to be triggered. Codes 31, 34 and 35 will trigger the CEL but the the EGR function will still be deleted.