Question about 2001 Chevrolet Silverado 1500

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Where are bank 1 and bank 2 o2 sensors on 2001 Chevy 1500?

My truck is stalling with DTC codes indicating problems with these two o2 sensors. Auto parts guy advised me to clean these 2 o2 sensors, but I do not know where they are located. Is removal and cleaning advisable for a novice?

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  • Chevrolet Master
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Hi T, Oxygen sensors are fitted into the exhaust manifolds. These sensors measure the amount of unburned oxygen left in the exhaust gas after ignition and if there is too much the sensor sends a signal to the ECU and the injection period is reduced, thereby reducing the amount of fuel. Look at the two manifolds and each will have a sensor connected with a cable. After cleaning or replacing the sensors and you find the fault remains, have another scan carried out and have the fuel pump pressure checked and replace the fuel filter. If when all this has been done let us know if the engine still stalls, and we will try a few other things. Happy new year and regards John

Posted on Jan 01, 2013

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The 02 Sensors are located in the exhaust pipe passenger side behind the catalytic converter. you'll see the wires on each one, you may have as many as four base on your engine size.

Posted on Jan 01, 2013

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SOURCE: 2000 chevy runs rough

fuel pressure regulator might b leaking .. pull vacuum line off of it and see if there is fuel.... if soo replace it

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USfalcon
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SOURCE: 1998 Chevy s10 4 cylinder running rough

1- check there is spark come from spark wires
2- check the fire timing by looking for every wire in the right place
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4- check for any vacuom leak
5- try to clean the MAF by brake and parts cleaner
6- try to reset all the code and see what will come after that

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pumpkinman
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SOURCE: 98 chevy s-10 codes p0131, p0171, and p1133

http://www.obd-codes.com/
go there look up the codes there all there

Posted on Sep 24, 2009

dttech
  • 4803 Answers

SOURCE: where is the bank 2 sensor 1 located.

Oxygen sensors are always numbered like this:

Bank 1 sensor 1
Bank 2 sensor 1
Bank 1 sensor 2
Bank 2 sensor 2

some manufacturers use a kind of shorthand that reads different, but means the same thing:
Sensor 1/1 or O2s 1/1
Sensor 2/1 or O2s 2/1
Sensor 1/2 or O2s 1/2
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.
On a 4 cylinder engine, there is only 1 bank and it is always referred to as Bank 1.

Sensor 1 is always the upstream sensor (The one located BEFORE the catalytic converter)
Sensor 2 is always the downstream sensor (the one that is located AFTER the catalytic converter.

Most GM engines have #1 cylinder located on the left bank, (or Driver's Side) of the engine,

So, the answer to your question would be that you are looking for the sensor located before the catalytic converter on the right (or Passenger Side) of the truck.

Posted on Oct 17, 2009

  • 1857 Answers

SOURCE: Code p0141 02 Sensor Heater Circuit Malfunct Bank #1 Sensor2

after the catalytic converter on the driver side in the exhaust pipe.

Posted on Jul 07, 2010

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1 Answer

It's a 2001 3.9L V6 the code is P 0132


Hi there:
DTC P0132 - O2 Oxygen Sensor Circuit High Voltage (Bank1, Sensor1)
This involves the front oxygen sensor on Bank 1. This code indicates that the heated oxygen sensor reading is too high. In the case of Ford vehicles, that indicates the voltage at the sensor is over 1.5 volts. Other vehicles may be similar. You will likely not notice any drivability problems.

A code P0132 may mean that one or more of the following has happened:
The oxygen sensor heater circuit is shorted out
The wiring to the sensor is broken / frayed (less likely)

Possible Solutions: the simplest thing to do is to reset the code and see if it comes back.

If the code comes back, the problem is more than likely the front Bank 1 oxygen sensor. You will likely wind up replacing it but you should also consider these possible solutions:
Check for wiring problems (shorted, frayed wires)
Check the voltage of the oxygen sensor
Replace O2 sensor (Bank 1 Sensor 1 is located on the driver's side)

Hope this helps; also keep in mind that your feedback is important and I`ll appreciate your time and consideration if you leave some testimonial comment about this answer.

Thank you for using FixYa, have a nice day.

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1 Answer

2001 Chevy Impala 3.8L. P0171 lean fuel code. We have replaced the MAF from a previous code. O2 sensors scan good, as does the fuel pump all within specs. Car is running like junk. 81K, Dropped Cat...


DTC P0171 - System Too Lean (Bank 1)
Basically this means that an oxygen sensor in bank 1 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 1 is the side of the engine that has cylinder #1.

Note: This DTC is very similar to P0174, and in fact your vehicle may show both codes at the same time.

According woth your previous tasks, inspect all vacuum and PCV hoses, replace if necessary.

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1 Answer

2001 toyota sienna 02 heater circuit bank 1 sensor 2


Sound like a DTC P0141 - O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)

A code P0141 may mean that one or more of the following has happened:
* open or short to ground in the wiring harness
* O2 heater circuit wiring high resistance
* O2 heater element resistance is high
* Internal short or open in the heater element

Note: Typically a failed catalytic converter does not cause this code. You're more likely to see a P0420 code for a failed converter.

Mar 16, 2011 | 2001 Toyota Sienna

3 Answers

Reccieved P0141, P0147, P0340 as emission diagnostic trouble codes. What do these mean?


P0141....O2 Sensor Heater Circuit (Bank 1 Sensor 2)

P0142....O2 Sensor Circuit Malfunction (Bank 1 Sensor 3)

P0143....O2 Sensor Circuit Low Voltage (Bank 1 Sensor 3)

P0144....O2 Sensor Circuit High Voltage (Bank 1 Sensor 3)

P0145....O2 Sensor Circuit Slow Response (Bank 1 Sensor 3)

P0146....O2 Sensor Circuit No Activity Detected (Bank 1 Sensor 3)

P0147....O2 Sensor Heater Circuit (Bank 1 Sensor 3)

P0340....Camshaft Position Sensor 'A' Circuit (Bank 1 or Single Sensor)

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2 Answers

2005 chevy astro code po59


HI, the DTC your Astro has set POO59 is set when the computer doesn't see the oxygen sensor heating up fast enough. This DTC is for the bank 2 sensor 1 oxygen sensor. I have rarely come across and other failure for this code other then the O2 its self. I would recommend to my customer to replace this sensor. Good luck and happy motoring

Aug 27, 2010 | 2004 Chevrolet Astro

1 Answer

2003 1500hd chevy silverado 6.0 liter. I had a



DTC Number
P0160 DTC Name O2 Sensor Circuit No Activity Detected Bank 2 Sensor DTC Number P0300 DTC Name Random/Multiple Cylinder Misfire Detected

Feb 17, 2010 | 2003 Chevrolet Silverado 1500

1 Answer

2001 mitsubishi galant,2.4L eng. Getting DTC 421. Is this code related to the catalytic converter? Check eng. light always on, also DTC 302 showing.


DTC code P0421 is the O2 sensor that indicates a an issue with the Catalytic Converter. Replace the O2 sensor to the Catalytic Converter "the one after Converter" It's common for the sensor to fail and you can pick one up from Auto Zone and they will have the step by step instructions to replacing the O2 sensor. 
DTC code P0302 Indicates a misfire on cylinder #2. Address the spark plug, spark plug wire, and injector. Look for any damages and try running some fuel injector cleaner through the fuel system to clean out the injectors. 
Good luck and hope this helps. 

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Car Stalls at low speed. Restarts. DTC Code 0340 and 1167


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Greg

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2004 gto ls1 motor is running rich and dtc code is P0131


that would be your best bet it is very hard to diagnose a injected v8 with out the right equipment but speaking from experience ( due to the fact we in Australia built these cars) the oxy sensors cause all sorts of problems and swapping them over does't necercarly prove much

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