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Code p2271 p2271 heated oxygen sensor 2signal stuck rich

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6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

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blueextc3221
  • 15935 Answers

SOURCE: need to know placement of heated oxygen sensor

The O2 sensors are located in the exhaust piping.
One (bank 1) is on the engine side of the Catalytic convertor.
Second (bank 2) is on the other side (exhaust end).

There are manufacturers that make universal fits that will go in either location. Be sure to specify the rear sensor when you go to the parts store.

It will look like this....

cfea0cf.jpg
It threads right into the exhaust pipe.

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Posted on Mar 05, 2009

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chuck943
  • 783 Answers

SOURCE: check engine light on.code is po113.sensor 1 circuit high input

If the only code you have is a P0113 then the answer to your question is no it can not be the oxygen sensor. P0113 indicates that the IAT sensor is reading at -46 deg F. With the computer thinking it is that cold it will need lots of fuel,cold air is more dense and com-pack so more molecules of oxygen and therefore needs more fuel to keep correct air/fuel ratio.
Do you have a way to measure voltage across the sensor?
You should have about 5V coming into the sensor and around 1.5 to 3.0V(depending on the temp) leaving it.

Posted on Mar 14, 2009

emissionwiz
  • 76649 Answers

SOURCE: po133 code on 1999 durango

The sensor is about the same as 1 hour labor time at the dealer, the sensor will not in most cases be defective with this code, something else is causing this engine to run rich.

Posted on Mar 23, 2009

BCAS1298
  • 3092 Answers

SOURCE: P2097 Error code in 2006 Dodge Grand Caravan, which O2 Sensor?

The one before the catalytic, on the side where cylinder # 1 is at. close to the exhaust mag.

Posted on Dec 28, 2009

ZJLimited
  • 17970 Answers

SOURCE: heated oxygen sensor-bank1 sensor2 [ho2s12] circuit

HO2-S12 (Oxygen sensor 1 Bank 2) it is screwed into the exhaust system downstream (tailpipe side) of the catalytic converter.

We dont know exactly the "code number" of your description, but we could advance that is refer at bad O2 sensor in this position. Possible causes:
Contaminated HO2S.
Exhaust leaks.
Shorted/open wires.
Improper fueling.
MAF sensor.
Deteriorating HO2S.
Air leaks.

This specific Diagnostic Trouble Codes (DTCs) indicate the response rate of the upstream HO2S(s) is below some calibrated window. The test measures the HO2S amplitude and output frequency. This is accomplished by superimposing a 1.5 to 2.5 Hz square wave over Lambse. The HO2S switching is monitored during this time to see if the calibration limit is met.

Additionally, some models have a secondary air injection (AIR) system is designed to lower the exhaust emission levels after engine start up. The Powertrain Control Module (PCM) commands the AIR pump relay ON by supplying a ground to the relay control circuit. This action energizes the AIR pump which forces fresh air into the exhaust stream. The PCM also commands the AIR vacuum control solenoid valve ON by supplying a ground to the control circuit. With the AIR solenoid activated, engine vacuum is then applied to the AIR shut-off valves. Fresh air from the AIR pump then enters into the exhaust stream. The air that is introduced into the exhaust system accelerates catalyst operation reducing exhaust emission levels. When the AIR system is inactive, the AIR shut-off valves prevent air flow in either direction.

After a warm start up the PCM can detect an AIR system air flow fault by monitoring the heated oxygen sensors (HO2S) and short term fuel trim (FT) values. This is a passive test. If the passive test indicates a pass, the PCM takes no further action. If the passive test fails or is inconclusive, the PCM diagnostic will proceed with an intrusive or active test. The PCM will command the AIR system ON during Closed Loop operation. The active test will pass or fail based on the response from the HO2S. The active test consists of three tests run at 3 second intervals. A lean HO2S response indicates that the secondary AIR system is functioning properly. An increasing short term FT value also indicates a normal functioning system. The AIR diagnostic consists of the combination of the passive and the active tests. If the PCM detects that the HO2S and short term FT did not respond as expected on bank 1 and bank 2 DTC P0410 sets.

The AIR system consists of the following components:
The AIR pump
The shut-off valves
The vacuum control solenoid valve
The system pipes/hoses
The AIR pump relay, the fuses, and the related wiring

CONDITIONS FOR RUNNING THE DTC
DTCs P0101, P0102, P0103, P0106, P0107, P0108, P0112, P0113, P0116, P0117, P0118, P0121, P0122, P0123, P0130, P0131, P0132, P0133, P0134, P0135, P0137, P0138, P0140, P0141, P0150, P0151, P0152, P0153, P0154, P0155, P0201, P0202, P0203, P0204, P0205, P0206, P0207, P0208, P0300, P0335, P0336, P0351, P0352, P0353, P0354, P0355, P0356, P0357, P0358, P0412, P0418, P0506, P0507, P1133, P1134 are not set.

Passive Tests
The engine is running for more than 3 seconds .
The engine speed is more than 600 RPM .
The throttle is steady.
The engine load is less than 80 percent .
The system voltage is more than 10.5 volts .
The mass air flow (MAF) is less than 35 g/s .
The air/fuel ratio is more than 12.5:1.
The engine coolant temperature (ECT) is between 5-108.5°C (41-227°F) .
The engine coolant start up temperature (ECT) is between 5-80°C (41-176°F) .
The intake air temperature (IAT) is between 5-72.5°C (41-162°F) .
The power enrichment or the deceleration fuel cut-off (DFCO) is not active.

Active Tests
The engine is running for more than 3 seconds .
The engine speed is more than 600 RPM .
The throttle is steady.
The engine load is less than 80 percent .
The system voltage is more than 10.5 volts .
The MAF is less than 35 g/s .
The fuel system is in Closed Loop operation.
The evaporative emissions (EVAP) purge is active.
The ECT is more than 68°C (154°F) .
The vehicle speed is between 56-72 km/h (25-35 mph) .

CONDITIONS FOR SETTING THE DTC
Passive Tests:
- The HO2S voltage for both fuel control sensors is more than 470 mV for 20 seconds , 200 mV for 7 seconds on a warm start while the AIR system is commanded ON.
- The HO2S voltage for both fuel control sensors do not toggle above 600 mV for 25 seconds, 7 seconds on a warm start while the AIR system is commanded ON.

Active Test
- The AIR passive test is inconclusive or failed.
- The HO2S voltage for both fuel control sensors is more than 250 mV for three 3 second active tests.

ACTION TAKEN WHEN THE DTC SETS
The control module illuminates the malfunction indicator lamp (MIL) on the second consecutive ignition cycle that the diagnostic runs and fails.
The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and updates the Failure Records.

CONDITIONS FOR CLEARING THE MIL/DTC
The control module turns OFF the malfunction indicator lamp (MIL) after 3 consecutive ignition cycles that the diagnostic runs and does not fail.
A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
Clear the MIL and the DTC with a scan tool.

DIAGNOSTIC AIDS
NOTE: Refer to Connector Test Adapter Kit J 35616-A Notice in Service Precautions.

Reviewing the Failure Records vehicle mileage since the diagnostic test last failed may help to diagnose the condition. The information may help to determine how often the condition that set the DTC occurs.
Inspect for the following conditions:
A Low AIR system air flow may cause this DTC to set.
Any excessive exhaust system back-pressure
Any moisture, water, or debris ingestion into the AIR pump
Any restrictions in the AIR pump inlet, duct, or filter
An intermittent may be caused by any of the following conditions:
Any pinched hoses or vacuum lines
Any kinked pipes/hoses or vacuum lines
Any split pipes/hoses or vacuum lines
Any heat damaged pipes
Any deteriorated hoses or vacuum lines
Any reversed inlet and outlet hoses at the AIR pump may cause a reduced air flow. This condition may cause this DTC to set. The AIR pump inlet and outlet ports should be clearly identified on the pump.
An AIR solenoid stuck open or leaking vacuum internally may hold the shut-off valves open, an audible exhaust popping noise may be heard through the air pump inlet hose. This condition may not set a code and may cause the fuel trim parameters to indicate a high percentage value at an idle
The AIR solenoid vents the vacuum from the shut-off valves when the system is inactive. Verify proper connections of vacuum hoses, reversed connections at the AIR solenoid may cause the AIR shut-off valves to be held open.
When commanding the AIR System ON with a scan tool the PCM will activate the AIR pump and the AIR solenoid. The fuel control system will then enter open loop status. This action will allow fresh air to enter the exhaust stream and cause the HO2S mV parameter to drop to near 0 mV . This would indicate a properly operating AIR system.
However if the AIR pump does not operate or there is no air flow from the pump entering the exhaust stream due to a leak in the system, the HO2S parameter may still drop below 100 mV . This is due to the fresh air being drawn into the exhaust stream from the opening of the shut-off valves. The HO2S will respond with a drop in mv readings as a result of this air leaning out the exhaust. The voltages may decrease to below 100 mV but not approach 0 mV .
If the condition is intermittent, refer to Intermittent Conditions.

TEST

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Posted on Aug 02, 2011

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2 Answers

My 2008 Silverado is throwing codes p2271,p2272 and p2273. What is the possible cause?


P2271 CHEVROLET - HO2S Signal Stuck Rich Bank 1 Sensor 2
https://www.autocodes.com/p2271_chevrolet.html

P2272 - O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 2
https://www.autocodes.com/p2272.html

P2273 - O2 Sensor Signal Biased/Stuck Rich Bank 2 Sensor 2
https://www.autocodes.com/p2273.html

Jan 27, 2017 | 2008 Chevrolet Silverado

1 Answer

Codes P2270& P2272 after oil change check engine light on drove under 100 miles both O2 sensors bad .Could shop have caused this somehow??? Maybe banging them or something ?


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

Jul 30, 2015 | Cars & Trucks

1 Answer

I am getting the following codes on my 2002 Nissan Altima v6 3.5 liter P1430, P1420, P1805, P1152, P1102, P1011, P1021 & P1335 I'm going crazy here. Please help!


Definition of Diagnostic Trouble Code P1430 Ford: Electric Air Pump Secondary Lincoln: Electric Air Pump Secondary Mazda: Electric Air Pump Secondary Mercury: Electric Air Pump Secondary Toyota: Intake Constrictor CTRL Circuit Open or Short

Definition of Diagnostic Trouble Code P1420 Audi: Second Air Injection Valve Circ Electrical Malfunction BMW: Secondary Air Valve Control Circuit Electrical Buick: Intake Air Low Pressure Switch Circuit Low Voltage Cadillac: Intake Air Low Pressure Switch Circuit Low Voltage Chevrolet: Intake Air Low Pressure Switch Circuit Low Voltage Chrysler: Register Resonant Charging 1 (RRC1) Dodge: Register Resonant Charging 1 (RRC1) Ford: Catalyst Temperature Sensor GMC: Intake Air Low Pressure Switch Circuit Low Voltage Honda: Nox Adsorptive Catalyst System Efficiency Below Threshold Catalytic converter Jeep: Register Resonant Charging 1 (RRC1) Lincoln: Catalyst Temperature Sensor Mazda: Catalyst system efficiency below threshold (bank 1) Mercedes: AIR Pump Switch over Valve Mercury: Catalyst Temperature Sensor Oldsmobile: Intake Air Low Pressure Switch Circuit Low Voltage Pontiac: Intake Air Low Pressure Switch Circuit Low Voltage Saturn: Intake Air Low Pressure Switch Circuit Low Voltage Subaru: EVAP Purge Control Solenoid Circuit High Input Toyota: SCV Control Circuit Malfunction Volkswagen: Second Air Injection Valve Circ Electrical Malfunction

Definition of Diagnostic Trouble Code P1805 Ford: Four wheel drive high indicator circuit failure Lincoln: Four wheel drive high indicator circuit failure Mazda: (4WD) High Indicator Open Circuit Mercury: Four wheel drive high indicator circuit failure Toyota: SB Solenoid Circuit Malfunction

Definition of Diagnostic Trouble Code P1152 Audi: Bank1, Long Term Fuel Trim, Range 2 Leanness Lower Limit Exceeded BMW: Oxygen Sensor Heater Circuit Low Voltage (Bank 2 Sensor 1) Ford: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Rich Jaguar: Lack of H02S-21 switch, sensor indicates rich Land Rover: Oxygen sensor response time bank 2.Short circuit to ground Lincoln: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Rich Mazda: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Rich Mercury: Lack Of Heated Oxygen Sensor Bank 2 Sensor 1 Switches - Sensor Indicates Rich Subaru: Oxygen sensor range /performance problem (Low) Volkswagen: Bank1, Long Term Fuel Trim, Range 2 Leanness Lower Limit Exceeded Volvo: Oxygen Sensor Front, Bank 2

Definition of Diagnostic Trouble Code P1102 Acura: Mass Airflow (MAF) Sensor Lower Than Expected Comprehensive Audi: Oxygen Sensor Heating Circuit,Bank1-Sensor1 Short to B+ Chrysler: HEV Stop Request Performance Dodge: HEV Stop Request Performance Hyundai: MAP Sensor Circuit Low Input Jeep: HEV Stop Request Performance Kia: Heated Oxygen Sensor Bank 1 Sensor 1 Heater Circuit High Input Land Rover: Throttle to air flow plausibility not active.Last occurrence - minimum signal Mazda: Mass Air Flow Sensor In Range But Lower Than Expected Mitsubishi: Traction Control Ventilation Solenoid Circuit Porsche: Heated Oxygen Sensor 1 Ahead Of TWC Heater Short To B+ Saab: Front Heated Oxygen Sensor Bank 1, Control Module Input, Current in Pre-Heating Circuit Too High Subaru: Pressure Sources Switching Solenoid Valve Circuit Malfunction Volkswagen: Oxygen Sensor Heating Circuit,Bank1-Sensor1 Short to B+ Volvo: Power Stage Group B

Definition of Diagnostic Trouble Code P1011 Saab: Injector Cylinder 1 Shorting To Ground Toyota: OCV for VVTL Open Malfunction (Bank 1)

Definition of Diagnostic Trouble Code P1021 Honda: Valve Pause System Stuck On Comprehensive Mitsubishi: OCV OPN. Bank 1 Saab: Injector Cylinder 2 Shorting To Ground Toyota: OCV for VVTL Open Malfunction (Bank 2)

Definition of Diagnostic Trouble Code P1335 Audi: Engine Torque Monitoring 2 Control Limit Exceeded Buick: CKP Circuit Cadillac: CKP Circuit Chevrolet: CKP Circuit Ford: (EGR) Position Sensor Minimum Stop Performance GMC: CKP Circuit Infiniti: CKP Sensor (Ref) Jaguar: CKPS Circuit Malfunction Land Rover: Exhaust gas recirculation position sensor minimum stop performance. Lexus: Igniter Circuit Malfunction Bank 2 (During Engine Running) Lincoln: (EGR) Position Sensor Minimum Stop Performance Mazda: (EGR) Position Sensor Minimum Stop Performance Mercedes: CKP Sensor Circuit Malfunction, Bank 2 Mercury: (EGR) Position Sensor Minimum Stop Performance Oldsmobile: CKP Circuit Pontiac: CKP Circuit Saturn: CKP Circuit Toyota: No CKP Sensor Signal Engine Running Volkswagen: Engine Torque Monitoring 2 Control Limit Exceeded http://www.obd-codes.com/trouble_codes/nissan

Jun 29, 2015 | Nissan Cars & Trucks

2 Answers

P2271 Engine code on again. Truck has been in several times for same reason. Is this a ongoing problem?


google: 2011 Dodge Ram Pickup 2500 P2271 Engine code

some mention of diesel. and O2 sensors. See if you can find others with your problem. Several times? Sounds like they owe you some more information. I'd get in touch with Dodge customer service!

Mar 04, 2015 | 2011 Dodge Ram Pickup 2500

1 Answer

Code po136 circuit bank 1 senser 2 (seep2270,p2271) on 2002 subaru forester


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

Most likely is your rear O2 sensor malfunction.

Sep 27, 2014 | 2002 Subaru Forester

2 Answers

Check engine light is on and i got error code p1133. what is that?


Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
- Vacuum leak
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical connection

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 90 seconds after closed loop operation has begun. The PCM determines if the front HO2S is functioning properly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.

If the Powertrain Control Module (PCM) determines that the front HO2S did not switch enough times, the PCM will set the P1133 code.

replace the o2 sensor

Dec 14, 2013 | 2006 Saturn Vue 2.2

2 Answers

What's your problem?service engine soon light on code P0132,P2195, P2196


P0132 FORD - O2 Sensor Circuit High Voltage Bank 1 Sensor 1xicon.jpghttp://engine-codes.com/p0132_ford.htmlForum CodePossible causes- Front Heated Oxygen Sensor Bank 1 harness is open or shorted
- Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Faulty Front Heated Oxygen Sensor Bank 1
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks
P2195 - O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1

P2196 - O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1

Jun 29, 2012 | Ford Cars & Trucks

1 Answer

2006 hundai elantra P2270 code. If this is an O2 sensor, which one?


Possible O2 sensors:

P2270 O2 Sensor Signal Stuck Lean Bank 1 Sensor 2
P2271 O2 Sensor Signal Stuck Rich Bank 1 Sensor 2
P2272 O2 Sensor Signal Stuck Lean Bank 2 Sensor 2
P2273 O2 Sensor Signal Stuck Rich Bank 2 Sensor 2
P2274 O2 Sensor Signal Stuck Lean Bank 1 Sensor 3
P2275 O2 Sensor Signal Stuck Rich Bank 1 Sensor 3
P2276 O2 Sensor Signal Stuck Lean Bank 2 Sensor 3
P2277 O2 Sensor Signal Stuck Rich Bank 2 Sensor 3
P2278 O2 Sensor Signals Swapped Bank 1 Sensor 3 / Bank 2 Sensor 3
---
This is Bank 1 (closer to the dash panel) Sensor 2 (located after the catalytic converter).

---
Note: A malfunctioning front oxygen sensor may cause fuel trim codes to set.
  1. Several Diagnostic Trouble Codes use specific terminology to refer to sensor location. The illustration and key below explain the following terms:
  2. Engine BANK Bank 1 is closer to the dash panel, (also referred to as RH or right hand). Bank 2 is closer to the radiator, (also referred to as LH or left hand).
  3. UP Refers to Sensor 1 or "front sensor". It is located closer to the exhaust manifold and before the catalytic converter.
  4. DOWN Refers to Sensor 2 or "rear sensor." It is located after the catalytic converter.
  5. The following examples show how to interpret oxygen sensor terminology:
  6. B1/S1 = Bank 1/Sensor 1 = Dash panel side, BEFORE the catalyst or "upstream"
  7. B2/S2 = Bank 2/Sensor 2 = Radiator side, AFTER the catalyst or "downstream"

Aug 06, 2010 | Hyundai Elantra Cars & Trucks

1 Answer

Code 2271 in the machine and the car no stared


Code P2271 is for an O2 sensor stuck rich
Hope this helps, Sherwin

Dec 27, 2009 | 2006 Toyota Prius

1 Answer

Truck codes p1132 and p1152


Hi,

P1132 = Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 1
P1152 = Lack of Upstream Heated Oxygen Sensor Switch - Sensor Indicates Rich - Bank No. 2

It sounds to me like the oxygen sensors (between the engine and catalytic converters) should be replaced. Good luck!

Dec 21, 2008 | 2000 Ford Windstar

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