G gazdon Member Sep 30, 2012 #1 will the 4.6 smoke if its not running on all 8 need to get to the bottom of this mot emissions fail.
Saint.V8 Dyed-in-the-wool 100% RR Junkie Full Member Sep 30, 2012 #2 Unburnt fuel from the non-firing cylinder will cause excess smoke...also will kill the Cats (not the meow ones unless they suck the exhaust) but the exhaust cats due to unburnt fuel....
Unburnt fuel from the non-firing cylinder will cause excess smoke...also will kill the Cats (not the meow ones unless they suck the exhaust) but the exhaust cats due to unburnt fuel....
