[crios]

Originally Posted by Lil bastard

The car is running rich, definitely NOT how it should look.

Issues related to running rich:

Sparkplugs

Failing O2 sensors

Failing MAF

Poor fuel quality

Driving habits (short trips, lots of idle time, stop&go, etc.)

Just to name a few.

Start by replacing the plugs and go from there. That soot will not burn away, clean it off so you can notice any improvement if any.

Lil bastard,
No codes showing for failed O2 or MAF. Actually replaced the MAF about a year ago.

Fuel, always Chervon and sometimes a bottle of Techron as well.

Driving habits, I always drive like it's stolen...so this might be a contribution. Drive about 100 miles a week. 10-20 miles at a time, 4-5 times a week. I work from my home office.

Thinking it's the plugs as well. It has 44K and about 6 years old...I think the plugs get replaced every 7 years/100K, so it's due for them.

Thanks!