P2195 OBD-II Trouble Code: O2 Sensor Signal Stuck Lean Bank 1 Sensor 1

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P2195 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P2195 code

P2195 is a diagnostic trouble code (DTC) for "O2 Sensor Signal Stuck Lean Bank 1 Sensor 1". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P2195 DIAGNOSTIC Get a fair and transparent estimate upfront

check engine light logo

P2195 trouble code definition

O2 Sensor Signal Stuck Lean Bank 1 Sensor 1

What the P2195 code means

P2195 is an OBD-II generic code for the engine control module (ECM) detecting the O2 sensor signal stuck lean for bank 1 sensor 1. The engine has tried to lean out a rich condition and failed.

What causes the P2195 code?

The engine control module is getting a signal from the bank 1 sensor 1 it is overly rich in that side of the engine and has tried to lean the mixture out to its limit causing the code to be set.

What are the symptoms of the P2195 code?

  • The Check Engine Light will be illuminated and the code is set in ECM memory as a fault.

  • The engine may be running rough, rich, and misfiring.

How does a mechanic diagnose the P2195 code?

  • Scans and documents the code in the ECM to check the freeze frame data for failure

  • Checks for any intake vacuum leaks or intake hose leaks between the mass air sensor and the throttle body

  • Checks for excessive fuel pressure

  • Checks the codes to see if only one or both sides of the engine are running rich

  • Checks the fuel injectors to see if one is leaking or stuck open

Common mistakes when diagnosing the P2195 code

  • Clearing ECM memory codes before checking the freeze frame data for the main failure problem, so the failure may be duplicated and repaired

  • Failing to clear the ECM codes after the codes are fixed

  • Failing to check the air filter for damage, allowing air to enter the intake unmetered by the mass air sensor

How serious is the P2195 code?

Code P2195 is an indication that the ECM is getting a signal to go lean from the O2 sensor and has tried to lean out the mixture to its limit and the system is still too rich.

What repairs can fix the P2195 code?

Additional comments for consideration regarding the P2195 code

Code P2195 is for only one of the O2 sensors and may be accompanied with other O2 sensor codes if the problem is causing the entire engine to run rich like excessive fuel pressure or mass air sensor or tube problems.

Need help with a P2195 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

P2195
trouble codes
Check Engine Light

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P2195 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,815

Rating Summary
3,485
164
43
24
99
3,485
164
43
24
99

Theodore

13 years of experience
814 reviews
Theodore
13 years of experience
Theodore encountered a delay on his previous appointment and promptly let me know that he would be late. Once he did arrive, he answered all of my questions and gave me some helpful tips for future services. He also gave great insight for DIY.
2006 NISSAN MAXIMA - CHECK ENGINE LIGHT IS ON - EVERETT, WASHINGTON

Eduardo

16 years of experience
203 reviews
Eduardo
16 years of experience
Very professional. Will use again
2007 HYUNDAI SANTA FE - CHECK ENGINE LIGHT IS ON - HOUSTON, TEXAS

Richard

18 years of experience
169 reviews
Richard
18 years of experience
Excellent! Professional. On time. Clean. Neat. Very efficient and fast. Definitely knows his stuff. Very nice and personable. Would highly recommend to everyone. Explained all the work that was needed and then explained and showed all the work that was done. Showed all the parts he removed and all of the parts he replaced. Transparent. Very knowledgeable. Diagnosed the problems the vehicle was having and then made any and all the necessary repairs requested in a very efficient manner. Definitely look forward to having the recommended services by Richard done and look forward to having him service my vehicle again. Special thanks to Your Mechanic for building such an amazing and much needed platform and for hiring Awesome mechanics like Richard. Great experience. Incredibly satisfied! Thanks to Your Mechanic and Richard, I'm finally back on the road again.
2006 BMW 330I - CHECK ENGINE LIGHT IS ON - LEHIGH ACRES, FLORIDA

David

13 years of experience
406 reviews
David
13 years of experience
David explains step by step the processes that have to be taken to diagnose the issue with the car, which could be as simple as a plug not being connected to a bad part. Excellent mechanic.
1999 LINCOLN NAVIGATOR - CHECK ENGINE LIGHT IS ON - EL SOBRANTE, CALIFORNIA

More related articles

How Long Does a Throttle Return Spring Last?
Not all vehicles on the road feature an electronic throttle control (ETC), which is also called drive-by-wire. For vehicles that don't offer this system, they have a throttle cable instead that...
Symptoms of a Bad or Failing Flexible Clutch Hose
Common signs include difficulty shifting, low clutch fluid, and feeling no resistance at the clutch pedal.
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....

Related questions

Q: OBD-II codes P2195 and P0171 appear

P2195 and P0171 occur when the engine is running too rich (too much fuel relative to air charge) and the engine feedback system is unable to compensate. The "how can you fix this" depends on which component(s) in the system...

Q: In limp mode following a catalytic convertor repair. Have driven 70 mIles in limp mode.

The only purpose of the catalytic converter is to reduce exhaust emissions. The converter is within the exhaust system and functions as part of the vehicle's emission control system. Excepting only an unusual circumstance where the converter is physically plugged...

Q: Engine light goes on and off

Usually there are two instances where we see a check engine light appear on and off as you describe the first involves the Check Engine Light coming on and staying lit. The vehicle will drive as if there is no...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com