Another Problem

[muddybamayota88]

I've got an engine problem now. Sometimes when I'm driving my engine light will come on and then it idles rough and smokes black. It usually doesn't happen till it's warmed up though. I think it is either o2 sensor or mass airflow sensor. Could it be something else? Has anybody had experience with this problem. Let me know Thanks

 

[mikes4runner]

I would clean the MAF if it does not help next time you get a CEL pull the codes and replace whats needed.

Could very well be the O2 sensor though but pull the codes to be sure.

 

[carina71]

Sounds like it may be a sticking choke, so you may want to look into that it if other attempts fail to solve your problem--especially if it worsens in cold weather.