This Toyota 4-Runner is getting terrible fuel economy and blowing black smoke out of the tailpipe. However, the trouble code is P0171-System too Lean!
Let's figure out why this engine computer is so confused...
Check out this video by James Danner on a similar Toyota false-lean condition:
[ Ссылка ]
Also included: BONUS MATERIAL (special request by Eric O. of South Main Auto Repair)!
![](https://i.ytimg.com/vi/w0j3FQxuNNk/maxresdefault.jpg)