Q: My car has a check engine light and gave codes P2195, P2251, P0170

asked by on

My car has a check engine light and I checked the codes and this is what came up: P2195 Powertrain O2 Sensor Signal Stuck Lean bank 1 Sensor 1; P2251 Powertrain O2 Sensor Negative Current Control Circuit / Open bank1 Sensor1; P0170 Powertain Fuel Trim (Bank 1). I don't know very much about cars. What could this be, and how do I fix it?

Based on these fault codes, it sounds like you have an oxygen sensor that as failed and it will need to be replaced. The trouble codes will also have to be cleared after the sensor is replaced to see if there are any other issues. You may want to enlist the help of a mechanic, who will have the tools and expertise to diagnose the Check Engine Light codes and carry out the repair.

Here are some in-depth articles for your codes, these will help you understand some of the concerns and possible fixes for your car:

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. My car has a check engine light and gave codes P2195, P2251, P0170

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: When i start my car it runs like its being revved up, takes some time befor normol idol, has trubol up hills and going faster 50m

I would download the OBD-II trouble codes to see what clues are revealed. If you want that step, as well as the below diagnostics, performed by a certified Mechanic, dispatched by YourMechanic right to your location, please request a check...

Q: How to remove dashboard to b able replace the heater core?

Hello. Replacing the heater core is an extensive job. You can subscribe to AllData DIY and purchase a short subscription to factory information and repair procedures. It costs about $27 for one year of unlimited data. I recommend you have...

Q: Q: Battery Light

There is probably a fault in the charging circuit and or the connections. The charging system output should be tested and if you are noticing this problem (the warning light) intermittently but it is nevertheless quite repetitive, it's possible to...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...