Question about 2001 Ford Windstar

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Codes how can repair code "bank 1" & "bank 2", or what mean this codes...???

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OK. The Code bank 1 or 2, have to be acompained with a especific code number.
Because Bank 1 or 2, is Left side or Right side.
On windstar Bank 1 is at the firewall side, and Bank 2 is at the radiator side.
But the number of the Code will give the especific problem on any of the Banks. After that you gonna know what you have to fix.

OK I hope this information will help on your question.

Thank's

Posted on Jul 10, 2008

6 Suggested Answers

theapeman
  • 1 Answer

SOURCE: PO137, PO 138 codes

well on my car these are reffering to the sensors in the exhaust, the upstream sensor(before the cat) and the downstream sensor(after the cat) the downstream sensor can act up if it is lazy or sluggish, or due to a bad catalytic converter or a clogged one. however there are sensors on the exhaust manifold which are determined by driver side or passenger,my opinion is to get a scanner for about $100 to $150 and you can figure out many of these codes yourself.

Posted on Sep 19, 2008

  • 1 Answer

SOURCE: what does engine fault code po171 system too lean bank 1 mean thanks

i think its the oxygen sensor (pre cat) in exhaust

Posted on Sep 23, 2008

  • 71 Answers

SOURCE: Problem code P0133 ("O2 Circuit slow response")

yes i would recommend replacing the o2 sensor, 9 times out of 10 it will correct the problem and they usually aren't too expensive for the saturn's

Posted on Nov 27, 2008

polarcycle
  • 1392 Answers

SOURCE: PO420" Catalyst efficiency low Bank 1"

Replace the catalytic converter.

Posted on Mar 10, 2009

juggernautxt
  • 145 Answers

SOURCE: Code: P0133 - O2 Sensor Circuit Slow Response Bank 1 Sensor 1

is this a 4 or 6 cylinder?
if a 4 cylinder it will only have 2 o2 sensors
V6 will have 4 o2 senors which the sensor will be the right side of the engine first sensor.
1st sensor on exhaust, I recommend if you change one change all, as this will make the computer when it rechecks the system you have all clean/fast responding sensors.

if you have a slow response it means the sensor is dirty and not reading well, which is usually caused by minor misfires that the engine computer dismisses, so a tune up would be recommended too.

Posted on May 06, 2009

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

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    What does code po171 mean


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    Why does po131 keep returning after i replaced bank 1 02 sensor ? i clear codes and en about a week code returns data looks good


    See causes
    P0131 OBD-II Trouble Code Technical Description

    Oxygen O2 Sensor Circuit Low Voltage (Bank 1, Sensor 1)
    What does that mean? Essentially the same as P0136 and P0137, a P0131 code refers to the first oxygen sensor on Bank 1.
    P0131 means the O2 oxygen sensor's voltage remained low for longer than 2 minutes. This, is interpreted by the ECM as a low voltage condition and sets the MIL. Bank 1 Sensor 1 is located in front of the catalytic converter.
    Symptoms There may be no visible symptoms to the driver, other than the MIL (Check Engine / Service Engine Soon) illumination.
    Causes A code P0131 may mean that one or more of the following has happened:

    • Faulty o2 oxygen sensor
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    • High resistance or open on O2 signal circuit
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    P0420 fault not going away


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    P0420 Chevrolet - Catalyst System Low Efficiency Bank 1 Repair Importance Level: 2/3 Repair Difficulty Level: 2/3 alt="What does this mean?"> alt="PDF"> alt="Share Code"> 3 alt="P0420 Chevrolet Comments"> ' Add Comment alt="Close Selection"> http://engine-codes.com/p0420_chevrolet.html Forum Code Possible causes - Three way catalyst converter Bank 1
    - Exhaust tube
    - Intake air leaks
    - Fuel injectors may be faulty
    - Fuel injector leaks
    - Spark plugs may be faulty
    - Improper ignition timing
    - Powertrain Control Module (PCM)
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    alt="What does this mean?"> What does this mean? When is the code detected? If a condition exists which causes the Powertrain Control Module (PCM) to detect excessive Bank 1 HO2S #2 activity outside of an acceptable range for an extended period of time, the PCM will set the P0420 code. This indicates that the three-way catalytic converters oxygen storage capacity is below a threshold considered acceptable. Possible symptoms - Engine Light ON (or Service Engine Soon Warning Light) P0420 Chevrolet Description In order to maintain a reasonably low emissions of Hydrocarbons (HC), Carbon Monoxide (CO), and Oxides of Nitrogen (NOx), the engine controls system uses a three-way catalytic converter. The catalyst within the converter promotes a chemical reaction which oxidizes the HC and CO present in the exhaust gas. This reaction converts them into harmless water vapor and Carbon Dioxide. The catalyst also reduces NOx, converting it to Nitrogen. The Powertrain Control Module (PCM) monitors this process using Bank 1 HO2S #2. Bank 1 HO2S #2, located in the exhaust stream past the three-way catalytic converter, produces an output signal which indicates the oxygen storage capacity of the catalyst. This determines the catalysts ability to convert exhaust emissions effectively. If the catalyst is functioning correctly, the Bank 1 HO2S #2 signal will be far less active than that produced by Bank 1 HO2S #1.


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    P1131 Ford
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    Repair Difficulty Level: 2/3

    http://engine-codes.com/p1131_ford.html

    Forum Code

    Possible causes

    - Faulty Oxygen Sensor

    - Vacuum leak affecting bank 1 only

    - Fuel injector problem bank 1

    - Check for cylinder misfire on bank 1

    - Engine mechanical condition

    Tech notes

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    A code P0155 may mean that one or more of the following has happened:
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    Sensor 2/2 or O2s 2/2

    Bank 1 is always the side of the engine where cylinder number 1 is located and, of coarse, Bank 2 is the opposite side.
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