Close
Q:

ruff idle spark plugs are black fould out on 1997 Dodge Ram 1500

Rookie cbe0621eac06868b3efe0d8d1d3611e23c60d3114864ea2ec19a68cfbd3eebab
i cleaned the plugs but they get fould out this black sauts coming out the tail pipe slogish
(2) Answers
(2) Comments
If the O2 sensor is bad, it can cause the engine to run very rich. However, and rich running engine can cause the O2 sensor to fail, so it can be difficult to find out which caused which.
the o2 sencor code but is blowing this wet black smoke, smells like gas out the pipe. and the plugs arent wet
theres no water geting used
its running too rich if its fouling out your plugs. try a hotter spark plug and see if that helps.