![How to Fix Ford P1131 Code Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 - YouTube How to Fix Ford P1131 Code Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 - YouTube](https://i.ytimg.com/vi/aC631OG5Mzk/sddefault.jpg)
How to Fix Ford P1131 Code Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 - YouTube
![97 Ford Probe---- when carhas run for a while sometimes it will jerk back and forth and tach will move up and down 97 Ford Probe---- when carhas run for a while sometimes it will jerk back and forth and tach will move up and down](https://www.justanswer.com/uploads/bluelightnin6/2009-06-04_220611_Noname.jpg)
97 Ford Probe---- when carhas run for a while sometimes it will jerk back and forth and tach will move up and down
![My code reader reads code p1131. Lack of HO2S11 Switches-Senser indicates Lean. Where is this sensor. My code reader reads code p1131. Lack of HO2S11 Switches-Senser indicates Lean. Where is this sensor.](https://www.justanswer.com/uploads/32dmadden/2006-10-08_071709_scan0097.jpg)
My code reader reads code p1131. Lack of HO2S11 Switches-Senser indicates Lean. Where is this sensor.
![How to Fix Ford P1131 Code Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 - YouTube How to Fix Ford P1131 Code Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 - YouTube](https://i.ytimg.com/vi/4WPFgyWi2gc/hq720.jpg?sqp=-oaymwEhCK4FEIIDSFryq4qpAxMIARUAAAAAGAElAADIQj0AgKJD&rs=AOn4CLDNDnFlsaipayJUDuixAVVYMgfkbg)
How to Fix Ford P1131 Code Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 - YouTube
![How to Fix Ford P1131 Code Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 - YouTube How to Fix Ford P1131 Code Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 - YouTube](https://i.ytimg.com/vi/oQRnXYv_kuk/hq720.jpg?sqp=-oaymwE7CK4FEIIDSFryq4qpAy0IARUAAAAAGAElAADIQj0AgKJD8AEB-AH-CYAC0AWKAgwIABABGGUgZShlMA8=&rs=AOn4CLBAUEdzWanIPwNkJXqwZRQW4HzzoQ)
How to Fix Ford P1131 Code Lack of Upstream Heated Oxygen Sensor Switch Sensor Indicates Lean Bank 1 - YouTube
![Amazon.com: Bosch 15717 Premium Original Equipment Oxygen Sensor - Compatible With Select 1989-16 Ford, Jaguar, Lincoln, Mazda, Mercury : Automotive Amazon.com: Bosch 15717 Premium Original Equipment Oxygen Sensor - Compatible With Select 1989-16 Ford, Jaguar, Lincoln, Mazda, Mercury : Automotive](https://m.media-amazon.com/images/I/61NXJ9VfgQL._AC_UF894,1000_QL80_.jpg)