i kno fumes are supposed to smell to a degree rite but mine r really bad they wont make ur eyes water but the smell its pretty strong ive smelled other cars to compare and mine r worst way worst now my plugs are nice and good looking no carbon build up nor wet or anything like that i got a new air filter i have a 350 with an ederblock 600 series i believe my cat its about 3 yrs old i have no air pump nor egr but my car passed all emissions really good HC 1.16 standard is 2.40 CO 13.87 standard is 20.00 NOX 3.28 standard is 3.50 now this last one its close but not bad for not having an egr any ideas on how to help tha situation any input appreciated

 

Is the smell somthing recent or has it been doing it for a while? Is it only inside the car or outside too?

 

The smell has been there since I put the 350 like a year and a half ago and its on the outside only at the tail pipes no where else

 

Any body else has any ideas whatever they might b should
I put tha egr valve back in would that make a difference thanks

 

maybe. once your car is warmed up the egr opens to lower the temp of exhaust preventing formation of really bad by products only produced under high temps. It does it by displacing some oxygen so that the burn stays within a lower temp/controlled range. Check your PVC valve too.

 

Pct its new and true that's what tha egr does so u think its creating some kind of bi-product that smells like that

 

not sure what an individual car will smell like but from a thousand cars or so it will create a smog cloud that hangs over a city on a hot day & that is hard to breathe