I have a 2004 Taurus, I ran a diagnostic test and got code P2270. I had the sensor replaced, drove it for 100 miles for the system to reset. The check engine light went off, but I'm still showin

you can find the answer by googling your question. All OBD2 codes are listed.
About 41,700 results (0.53 seconds)
https://www.obd-codes.com/p2270
https://www.yourmechanic.com/article/p2270-obd-ii-trouble-code-o2-sensor-signal-stuck-lean-bank-1-sensor-2-by-jay-safford

make sure they are plugged in tight Definition of Diagnostic Trouble Code P2270 Category: Powertrain Definition: O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2Note: This definition of P2270 is applied to all manufacturers

P2270 - O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 2 Comments ' Add Yours
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
- Exhaust gas leaks Help with this
When is the code detected?
The Powertrain Control Module (PCM) detected the HO2S12 sensor has reported a lean condition for an extended period during an intrusive test
Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P2270 Description
The Powertrain Control Module (PCM) supplies a voltage of about 450 mV between the HO2S high and low signal circuits. The oxygen sensor varies the voltage over a range from about 1,000 mV when the exhaust is rich, down through about 10 mV when the exhaust is lean.
The PCM monitors and stores the heated oxygen sensor (HO2S) voltage information. The PCMevaluates the HO2S voltage samples in order to determine the amount of time the HO2S voltage was out of range. The PCM compares the stored HO2S voltage samples taken within each sample period and determines if majority of the samples are out of the operating range.

Definition of Diagnostic Trouble Code P2272 Category: Powertrain Definition: O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 2Note: This definition of P2272 is applied to all manufacturers

P2272 - O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 2
' Add Comment
Possible causes
- Faulty Rear Heated Oxygen Sensor Bank 2
- Rear Heated Oxygen Sensor Bank 2 harness is open or shorted
- Rear Heated Oxygen Sensor Bank 2 circuit poor electrical connection
- Exhaust gas leaks
What does this mean?
When is the code detected?
The Powertrain Control Module (PCM) detected the HO2S22 sensor has reported a lean condition for an extended period during an intrusive test
Possible symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
- High Fuel Consumption
- Excessive Smoke from Exhaust
P2272 Description
The Powertrain Control Module (PCM) supplies a voltage of about 450 mV between the HO2S high and low signal circuits. The oxygen sensor varies the voltage over a range from about 1,000 mV when the exhaust is rich, down through about 10 mV when the exhaust is lean.
The PCM monitors and stores the heated oxygen sensor (HO2S) voltage information. The PCMevaluates the HO2S voltage samples in order to determine the amount of time the HO2S voltage was out of range. The PCM compares the stored HO2S voltage samples taken within each sample period and determines if majority of the samples are out of the operating range.
P2272 Information for specific makes
P2272 BMW
P2272 DODGE
P2272 FORD

http://www.obd-codes.com/p2270


http://www.obd-codes.com/p2197

replace your rear oxygen sensor ,,,if that does not clear your code after about a 100 miles than you need a cat converter ,,if you have a bundle of miles on it already that will most likely be your issue

their are really no tricks need to get code for check engine light most auto stores offer this service for free if code is a simple fix repair as necessary --but if you have code and just reset you will have to put miles on vehicle most vehicles take over 100 miles so that all components cat converter-o2 sensors-evap system -etc warm up , reset and run thru their paces code can come back and than you are back to square one so get code and start from there

Error Code: P0154
Description:
Heated Oxygen Sensor (HO2S) 1 , Bank 2 - No Activity Detected
Problem areas:
- Wiring.
- Open circuit in signal wire, between Heated Oxygen sensor 1, Bank 2 and ECM. (Must check and confirm)
- Heated oxygen sensor (HO2S).
- Engine control module (ECM).

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HOPE THIS HELPS

Dodge Forum stated something about have the PCM reprogrammed may be in order after replacing/getting this code....said there was a tsb for it..NUMBER: 18-015-09

TPS wears in spots and can cause intermittent problems like you described. Try turning off the car and unpluging the TPS. Start the car and see if smooths out the idle/reving problem while the TPS is unplugged. If yes replace the TPS.

It could be the problem if the car has this type of sensor. Otherwise it is another sensor activating the light. The only way to tell is have a diagnostics test ran to read the engine codes, and then have the system reset by the same diagnostic scanner. Many part stores will check it for free.