O2 Sensor Circuit Low Voltage Bank 1 Sensor 2
Table of contents
- Possible Causes
- How To Fix
- Tech Notes
- Cost To Diagnose
- When is the code detected
- Possible Symptoms
- Description
P0137 Possible Causes
- Faulty Rear Heated Oxygen Sensor Bank 1
- Rear Heated Oxygen Sensor Bank 1 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
How do I fix code P0137?
Check the “Possible Causes” listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector’s pins.
Tech Notes
User Submitted Video
Cost of diagnosing the P0137 code
The cost of diagnosing the P0137 code is 1.0 hour of labor. The auto repair labor rates vary by location, your vehicle’s make and model, and even your engine type. Most auto repairs shops charge between $75 and $150 per hour.
When is the code detected
The P0137 code is set when the Engine Control Module (ECM) detects that the rear O2 sensor signal voltage remains excessively low for an extended period of time.
Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P0137 Description
The heated oxygen sensor 2 (HO2S), after three way catalyst (manifold), monitors the oxygen level in the exhaust gas on each bank. For optimum catalyst operation, the air fuel mixture (air-fuel ratio) must be maintained near the ideal stoichiometric ratio. The HO2S output voltage changes suddenly in the vicinity of the stoichiometric ratio. The Engine Control Module (ECM) adjusts the fuel injection time so that the air-fuel ratio is nearly stoichiometric. The HO2S generates a voltage between 0.1 and 0.9 V in response to oxygen in the exhaust gas. If the oxygen in the exhaust gas increases, the air-fuel ratio becomes Lean. The ECM interprets Lean when the HO2S voltage is below 0.45 V. If the oxygen in the exhaust gas decreases, the air-fuel ratio becomes Rich. The ECM interprets Rich when the HO2S voltage is above 0.45 V.
I think this is among the most important information for me.
And i’m happy reading your article. But want to observation on some
general issues, The website style is perfect,
the articles is in reality great : D. Just right task, cheers
It’s impressive that you are getting ideas from this post as well as from
our dialogue made at this time.
I’d like to find out more? I’d like to find out some additional information.
Hey there! I know this is kinda off topic nevertheless
I’d figured I’d ask. Would you be interested in trading links or maybe guest writing a blog article or vice-versa?
My website addresses a lot of the same topics as yours and
I believe we could greatly benefit from each other.
If you happen to be interested feel free to send me an email.
I look forward to hearing from you! Superb blog by the way!
An outstanding share! I have just forwarded this onto a friend
who was doing a little research on this. And he in fact bought me breakfast simply because I found it for him…
lol. So let me reword this…. Thank YOU for the meal!!
But yeah, thanks for spending some time to talk about this
matter here on your web site.
Good day! I know this is kind of off topic but I was wondering
which blog platform are you using for this website?
I’m getting sick and tired of Wordpress because I’ve had issues with hackers
and I’m looking at alternatives for another platform. I would be fantastic
if you could point me in the direction of a good
platform.
This is very interesting, You are a very skilled blogger.
I’ve joined your feed and look forward to seeking more of your
excellent post. Also, I have shared your website in my social networks!
Hello there! I just want to offer you a big thumbs up for the excellent info
you have got here on this post. I will be returning to your web site for more soon.
Good post. I learn something totally new and challenging on blogs I stumbleupon on a
daily basis. It’s always useful to read through content from other authors and use something from other
web sites.