Codes p1406 and p0401
jwebb37
02-27-2012, 08:05 PM
I have a 99 mustang 3.8. My CEL is on and these were the codes. I know they are related to the EGR. The thing is my engine light comes on and then a bit later will go off. Why would it be doing this? I have also noticed a slight exhaust smell. If the EGR is bad would there be a smell?
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