what does P1158 HO25 failed to switch to lean/BankB

Asked by Aug 30, 2012 at 02:55 AM about the 1997 Land Rover Discovery

Question type: Maintenance & Repair

wont pass smog due to high emissions and the check engine light wont turn off. all the censors have been changed. what is P1158 HO25 failed to switch to lean/bank b

1 Answer


The exhaust oxygen sensor (HO2S) of Bank B (right hand side of the engine) is giving a faulty or no signal, check the wires going to it and ensure the sensor was actually replaced.

Your Answer

Add photo

Related Questions

Search Land Rover Discovery Questions

Land Rover Discovery Experts

#1 Simon Briggs
Simon Briggs
Reputation 470
#2 Matt Mankinen
Matt Mankinen
Reputation 360
#2 chassy
Reputation 360
View All

Related Models For Sale

Used Land Rover Range Rover
121 Great Deals out of 4,822 listings starting at $2,500
Used Land Rover Defender
117 listings starting at $25,999
Used Toyota Land Cruiser
12 Great Deals out of 1,017 listings starting at $3,800
Used Toyota 4Runner
225 Great Deals out of 19,106 listings starting at $1,500
Used Jeep Wrangler
258 Great Deals out of 15,909 listings starting at $2,695
Used Jeep Grand Cherokee
1,068 Great Deals out of 73,682 listings starting at $1,200
Used Jeep Cherokee
409 Great Deals out of 40,808 listings starting at $1,500

Used Cars For Sale

2017 Land Rover Discovery For Sale
1,258 listings starting at $53,685

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.