Question about 2001 Ford Windstar

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POSSIBLE VACUM LEAK I THINK

I HAD A BAD LEFT BANK OXYGEN SENSOR FOR ABOUT A YEAR AND NOTHING HAPPENED SO KEPT DRIVING AND ONE DAY STARTED TO ATL FROM MURPHY N.C. AND GOT 8 MILES DOWN ROAD AND ENGINE RAN REAL ROUGH AND GOT IT HOME AND LATER HAD OXYGEN SENSOR REPLACED AND NEW WIRES AND PLUGE=S BUT IDLE MISS IS STILL THERE AND ON ACCELERATION IT MISSES BUT CRUSING DONT FEEL IT. WHAT HAPPENED ALL OF A SUDDEN. WE LIVE ON FIXED INCOME AND REALLY CANT AFFORD $75 TO $100 JUST TO TELL ME WHATS WRONG FROM THE FORD DEALER HERE KING FORD. DAVE

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Dave you ran it with a bad 02 sensor so most likely the EGR valve is plugged pull it off and clean it and it should help withte problem.

Posted on Jun 21, 2009

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2 Answers

P1133/oxegen sensor


MAKE SURE THE CONNECTIONS AT THE SENSOR ARE GOOD,ALSO CHECK FOR VACUUM LEAKS,HERE'S A LINK TO YOUR CODE,THE OLD SENSOR MAY BE GOOD,JUST A VACUUM LEAK, P1133 Chevrolet HO2S Insufficient Switching Bank 1 Sensor 1

Oct 17, 2015 | 2002 Isuzu Rodeo Sport S 3.2L V6 Hard Top

1 Answer

How to fix error code P0153 Slow Response Bank 2 Sensor


This involves the oxygen sensor upstream the catalytic converter on Bank 2. This code indicates the engine air fuel ratio is not being adjusted by the oxygen sensor signal or the ECM as expected to do so, or not adjusted as often as expected to do so once the engine is warmed or under normal engine use. You will likely not notice any drive ability problems, although there may be symptoms. A code P0153 may mean that one or more of the following has happened: The oxygen sensor is faulty The wiring to the sensor is broken / frayed There is an exhaust leak Possible Solutions Things that may fix the problem include: Check and fix any exhaust leaks, Check for wiring problems (shorted, frayed wires), Check the frequency and amplitude of the oxygen sensor (advanced), Check for a deteriorating / contaminated oxygen sensor, replace if necessary, Check for inlet air leaks, Check the MAF sensor (sensor of the pipe from air cleaner) for proper operation, Replace the Bank 2 oxygen sensor upstream of the catalytic converter (follow from CC towards engine - you wil see the sensor)

Aug 18, 2014 | 1999 Isuzu Rodeo

2 Answers

Code p0159 what is this


159, (USA?) must be V6 or V8 it has 2 banks.
first google hit
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
- Inappropriate fuel pressure
- Faulty fuel injectors
- Intake air leaks may be faulty
- Exhaust gas leaks

let me condense this.
1: the right bank rear 02 sensors is reading wrong,
note I did not say it was bad. dig?
2: this means the CAT on that side, is UNHAPPY.

unhappy can be , as it said air leaks anywhere near the front or rear of Bank 2 CAT.
unhappy 2, is the engine fuel controls are totally out of control
way rich or lean, out of control;
unhappy3, gross misfire, or all the above at once.

the ECU(pcm) at no time ever KNOW what is wrong, it only can flag bad inputs. or tests that fail , tests are called (USA,OBD2 SAE) called Monitors.
do you have a full can tool? or just a near useless codereader.
?

Oct 15, 2013 | 2004 Jeep Grand Cherokee

1 Answer

P0131 sabb 93 2001 po121 error codes


P0131 - O2 Sensor Circuit Low Voltage Bank 1 Sensor 1 (sensor is before the catalytic converter)

Possible 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
P0132 - O2 Sensor Circuit High Voltage Bank 1 Sensor 1
Possible 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

I am not really sure what is going on here with the same O2 sensor giving these lean and rich codes, if nothing else is apparent and the engine runs well you may have a defective O2 sensor.

Sep 13, 2012 | Saab 9 3 Cars & Trucks

2 Answers

P0138 and p0158


These codes, po 138 bank 1 sensor 2 shorted to voltage and code po158 means bank 2 sensor two shorted to voltage. these are the two rear oxygen sensors in the exhaust system. there two up frt and two in the rear, check the wiring on the two rear sensors, make sure that the wiring is not cut or stuck between metal. if the wiring is good then replace both rear sensors, when you get them ask for the left and right after the cat sensors. or bk1 s2 and bk2s2. after replacing them reset the computer. go to an auto parts sotre or if you have a code reader you can do it. hope this helps good day.

Feb 19, 2012 | 2004 Dodge Stratus

2 Answers

SERVICE ENGINE SOON LIGHT CAME ON READS CODE P0431 AND P0421


Converter is not working as efficiently in Bank 1 and Bank 2 (two codes)...

P0421 - Warm Up Catalyst Efficiency Below Threshold (Bank 1)
Basically this means that the oxygen sensor downstream of the catalytic converter on bank 1 is detecting that the converter is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

Symptoms: You will likely not notice any drivability problems, although there may be symptoms. The code may be more likely to occur after the engine has had numerous cold starts in the past 1-2 days.

Causes: A code P0421 may mean that one or more of the following has happened:
The catalytic converter is no longer functioning properly
An oxygen sensor is not reading (functioning) properly
A sparkplug is fouled up

Possible Solutions:
Measure the voltage at the oxygen sensor on Bank 1 (the rear sensor, or the sensor after the converter). In fact, it would be a good idea to test each oxygen O2 sensor while you're at it.

One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It's worth checking into.

P0431 - Warm Up Catalyst Efficiency Below Threshold (Bank 2)
Basically this means that the oxygen sensor downstream of the catalytic converter on bank 2 is detecting that the converter is not working as efficiently as it should be (according to specs). It is part of the vehicle emissions system.

Symptoms: You will likely not notice any drivability problems, although there may be symptoms such as a rough/hard idle when cold.

Causes: A code P0431 may mean that one or more of the following has happened:
The catalytic converter is no longer functioning properly
An oxygen sensor is not reading (functioning) properly
There is an exhaust leak

Possible Solutions:
Inspect for exhaust leaks. Next step is to measure the voltage at the oxygen sensor on Bank 2. In fact, it would be a good idea to test each oxygen O2 sensor while you're at it.

One thing to note is that many vehicle manufacturers offer a longer warranty on emissions-related parts. So if you have a newer car but it's out of it's bumper-to-bumper warranty, there still may be warranty on this type of problem. Many manufacturers give a five year, unlimited mileage warranty on these items. It's worth checking into.


Hope this helps.

May 05, 2011 | 2004 Mitsubishi Endeavor

2 Answers

What does error code p0172 and p0174?


P0172 - Fuel Injection System Too Rich Bank 1 Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connec
Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem.



P0174 - Fuel Injection System Too Lean Bank 2 Symptoms - Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
Possible causes - Intake air leaks
- Front Heated oxygen sensor may be faulty
- Injectors may be faulty
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Mass air flow sensor may be faulty
- Incorrect PCV hose connection
Possible solution Dirty air filter of faulty air flow sensor are common causes of the problem. Bottom line possible defective Mass airflow sensor and or O2 sensor in cylinder bank number two.

Feb 21, 2011 | 1998 Ford Expedition

2 Answers

Code PO174 The check Engen light came on


defined as fuel trim lean bank 2. possible causes would be clogged fuel injectors, vacum leak or bad oxygen sensor

Nov 17, 2009 | 1998 Cadillac DeVille

3 Answers

2001 Toyota corolla hesitates on acceleration


Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust).

Mar 27, 2009 | 2001 Toyota Corolla

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