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Black Smoke at Exhaust

1K views 5 replies 3 participants last post by  SRT1969 
#1 ·
I installed new Belanger headers + high flowcats + Corsa exhaust. Oxygen sensors in place (not removed).
Also I installed Mopar Gen IV upgrade for Gen III which included Heads, Intake Manifold, fuel Injectors, gas pump, PCM upgrade.
I am having some Black smoke coming out the exhaust (not so much, not visible), it increases as car heats up. The hotter the more amount and smell to gasoline coming out of the exhaust (rich mixture).
Black smoke not seen but I noted that exhaust pipes getting dirt, so I cleaned them and Black residue acumulates, totally black.:mad:

Any ideas?
 
#4 ·
Wideband sensors monitor the Air fuel ratio to see if it's running rich or lean. After reading your other thread about oil in the intake I would fix that first to see if it helps. You can get them from most vendors here or just Google it. AEM's seem to be the easiest to set up and are pretty accurate.
 
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