Question about 2001 Chevrolet Silverado 1500

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I keep getting these codes (p1153, p1133) auto zone can't really define. I have already replaced both of those O2 sensors....please help

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6ya6ya
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Posted on Jan 02, 2017

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  • 14 Answers

SOURCE: diagnostic codes

p1133 O2 sensor insufficent switching (pre converter, left bank)

p1153 ) 02 sensor insufficient switching preconverter right bank

P0420) catalyst system efficiency below threshold left bank

P0151) 02 sensor circuit high voltage pre converter right bank

and p1460 unfortunately I don't have handy..... But REALLY sounds like you need to replace the Oxygen sensors in front of the catalitic converters... There is dual exhaust coming from the engine to one muffler in that truck, there are a total of 2 converters and 4 O2 sensors (1 in front of converter and 1 behind it on both of the pipes) Front ones are definetely shot!!!! Be prepared to put the rear ones in shortly after!!!!! they are about $80 canadian each at the jobbers and probably more at the dealer!!!!!

Posted on Feb 28, 2009

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SOURCE: diagnostic codes 97 tahoe 4d 4wd 5.7

p1460 cooling fan circuit,p1153 ho2s insufficient switching bank 2 sensor 1,p1133 insuf. swit. sen. 1 or bank 1 sen. 1,p420 catalyst system efficiency below threshold bank 1,p152 o2sen. circuit high volt. bank 2 sen.1

Posted on Feb 25, 2009

  • 1 Answer

SOURCE: Location O2 sensor after cat for Mazda Miata 2002

Just had BOTH of my O2 sensors replaced in my 2002 Miata.  The sensors are located
1. at the back of the engine compartment look down (on the passenger side ) You should see a spark plug looking device near the bottom of the engine (on the side) it has a short wire output that goes to a connector looking device on the other end. This O2 sensor had a short wire connector on the other end
Probably can be replaced from the top.
2.  This one is tougher --- From underneath the vehicle just after the catalytic converter  you should be able to see the Spark plug like O2 sensor .  The person who repaired it for me had to trace the wire from the O2 sensor.  It goes up into ( perhaps the frame or bottom of the vehicle INTO the Driver compartment under the drivers seat.  It is located near the Center Console  right at the carpet seam. It was about in a straight line from the BACK of the Drivers side Car Door.  He felt around -- and located the Connector (under the carpet near the center console. .  He checked underneath the car to the point where the wire disappeared --to confirm he had the correct wire.  
Once he located where the sensor wire led to --He had the old sensor out and wire connector disconnected and a  New sensor and the connector installed in about 10 minutes.  
The O2 sensor for this one was much longer than the first O2 sensor in the engine compartment He had to use some sort of standard release spray on the old sensor itself --to remove the old O2 Sensor.   Since it is exposed to the elements under the car.   Wrench, I think a screwdriver  and the spray were all the tools I remember him using.....

The autozone code indicated only the engine compartment sensor was bad.
The repair man told me Both usually go bad at the same time.  
I fixed the first one only -- turned out the warning light lit up a day or so later indicating the second O2 Sensor under the vehicle was bad.  Fixed that as well -- have had no problems since -- repair was about 4 months ago.....

Posted on May 24, 2009

Molson02536
  • 3854 Answers

SOURCE: codes p1153 -p1140 -p1133-p0174

P0174 Basically this means that an O2 sensor in bank 2 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 2 is generally the side of the engine that doesn't have cylinder #1.
P0140 Basically this means the an O2 sensor in Bank 1 detected a lean condition, same as mentioned above. Bank 1 is the side where cylinder #1 is.
In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling.

P1133 and P1153 indicate that the HO25 Sensor has gone bad. There the O2 sensor to the left and right bank at the exhaust manifold. When the engine first start's the PCM runs on a open loop and ignores the O2 readings till it reaches it's operating temperature. Once the operating temperature has been reached the diagnostic will only run once per ignition cycle and if the PCM detects a lesser then specified value, a DTC of P1133 or P1153 will come up.
Once the problem has been repaired, after 3 start cycle will reset the MIL light. If the O2 is just dirty and slow to heat up try cycling the ignition start 3 times and the light should go off if the O2 sensor does not fail.
Try cleaning the MAF first and see if the light comes off after a few ignition cycle, If the service light is still on you can always have Auto Zone clear the DTC codes and see if it comes back which then check the left and right bank wire harness to the O2 sensors. 
Good luck and hope this helps, keep me posted.

Posted on May 25, 2009

  • 113 Answers

SOURCE: 96 cavalier obd codes p0171 p0131 p1133 replaced

if you replaced the sensors, you have to clear the codes with a obd2 scantool, otherwise its still gonna show a fault.

Posted on Jul 21, 2009

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4 Answers

Code p0153..p1153


Rowland, Code p0153 Faulty oxygen sensor.
http://www.obd-codes.com/p0153
Code p1153 Probale faulty oxygen sensor.
PCM detect less than 55 lean to rich or rich to lean switches
P1153 OBD Trouble Code

Check the attached links,instruction and guides, Good luck
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

Mar 21, 2016 | GMC Cars & Trucks

1 Answer

P1133 p1153


P1153 AND P1133 ARE THE 2 FRONT OXYGEN SENSORS NOT WORKING BY CODE, BEFORE REPLACEMENT OF THIS SENSORS, MAKE SURE THE FUEL PRESSURE IS CORRECT AND NOT TOO RICH OR TOO LEAN, ALSO MAKE SURE THE ENGINE IS SMOOTH WHEN IDLE, IF A MISFIRE OR MORE IS THERE REPAIR THE MISFIRE FIRST THEN CLEAR THE CODES AND DRIVE IT 2 CYCLES FIND OUT IF IT IS CORRECTED, THEN IF THEY COME BACK REPLACE BOTH OXYGEN SENSORS UP STREEP ON TOM OF THE CATALYTIC CONVERTOR.

May 28, 2014 | 1999 Cadillac Escalade

1 Answer

What does it mean when code P1133 comes up on your Grand Prix 2004 tes


Hi there:
DTC P1133 - Insufficient switching on Bank1 Sensor1 O2 sensor.


This is the O2 sensor located in the exhaust manifold. The vast majority of the time it is a faulty O2 sensor, but check O2 wiring harness for any chafing, as well as melting(resting on exhaust manifold):



8_21_2012_6_57_12_pm.png

To replace, disconnect the harness connector, and use O2 sensor socket to remove sensor. Once you change it, the code has to be cleared with a scanner. it wont reset itself. Most major parts stores will clear the codes for free. Make sure you get a direct fit O2 sensor. The universal ones that you have to splice into dont work right most of the time. They lose voltage in the wire splice and will reset the code.



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.

Aug 21, 2012 | 2004 Pontiac Grand Prix

2 Answers

I have Codes: P1133 and P1153 on my 1996 Trooper with 3.2 engine. Here is my question: The two upstream O2 sensors that are the cause of these codes are slimed with oil that is dripping from the engine....


OXYGEN SENSORS GETTING OIL ON THEM. THAT IS A BAD SIGN.THAT YOUR ENGINE BURNING OIL.LOOK AT SPARK PLUGS IF THEY ENGINE OIL DEPOSIT ON THEM.YOU HAVE WORN PISTON RINGS,WORN VALVE GUIDES OR WORN VALVE SEALS. YOU CAN REPLACE AND CLEAN BOTH O2 SENSORS IF ENGINE BURNING OIL.IT WILL KEEP LEAKING OIL ON O2 SENSORS AND SPARK PLUGS.

May 11, 2011 | 1996 Isuzu Trooper

2 Answers

Check Engine Light


P1133 HO2S Insufficient Switching - Read Our Article On Oxygen Sensor Codes For Help With This Pontiac Trouble Code (check your oxygen sensor also called O2 sensor)

All the codes you have listed come back and refer to the oxygen sensor. I would say that it is your problem. you vehicle may have 2

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Dec 09, 2009 | 2002 Pontiac Firebird

1 Answer

1998 pontiac grand prix gt service engine soon light just came on. Auto Zone did a test and came back with a code. It said ''Fuel Air Metering P1133''. Can you tell me what this is?


P1133 HO2S Insufficient Switching Sensor 1

THIS IS THE O2 SENSOR CLOSEST TO THE ENGINE AND BEFORE THE CONVERTER.

AN EXHAUST LEAK OR A BAD SENSOR COULD BE THE PROBLEM.

CHECK THE O2 SENSOR WIRING FOR DAMAGE, CORROSION, ETC.

Jul 10, 2009 | 1998 Pontiac Grand Prix

1 Answer

Codes p1153 -p1140 -p1133-p0174


P0174 Basically this means that an O2 sensor in bank 2 detected a lean condition (too much oxygen in the exhaust). On V6/V8/V10 engines, Bank 2 is generally the side of the engine that doesn't have cylinder #1.
P0140 Basically this means the an O2 sensor in Bank 1 detected a lean condition, same as mentioned above. Bank 1 is the side where cylinder #1 is.
In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling.

P1133 and P1153 indicate that the HO25 Sensor has gone bad. There the O2 sensor to the left and right bank at the exhaust manifold. When the engine first start's the PCM runs on a open loop and ignores the O2 readings till it reaches it's operating temperature. Once the operating temperature has been reached the diagnostic will only run once per ignition cycle and if the PCM detects a lesser then specified value, a DTC of P1133 or P1153 will come up.
Once the problem has been repaired, after 3 start cycle will reset the MIL light. If the O2 is just dirty and slow to heat up try cycling the ignition start 3 times and the light should go off if the O2 sensor does not fail.
Try cleaning the MAF first and see if the light comes off after a few ignition cycle, If the service light is still on you can always have Auto Zone clear the DTC codes and see if it comes back which then check the left and right bank wire harness to the O2 sensors. 
Good luck and hope this helps, keep me posted.

May 25, 2009 | 1997 Oldsmobile Aurora

1 Answer

Diagnostic codes 97 tahoe 4d 4wd 5.7


p1460 cooling fan circuit,p1153 ho2s insufficient switching bank 2 sensor 1,p1133 insuf. swit. sen. 1 or bank 1 sen. 1,p420 catalyst system efficiency below threshold bank 1,p152 o2sen. circuit high volt. bank 2 sen.1

Feb 24, 2009 | 1997 Chevrolet Tahoe

1 Answer

Diagnostic codes


p1133 O2 sensor insufficent switching (pre converter, left bank)

p1153 ) 02 sensor insufficient switching preconverter right bank

P0420) catalyst system efficiency below threshold left bank

P0151) 02 sensor circuit high voltage pre converter right bank

and p1460 unfortunately I don't have handy..... But REALLY sounds like you need to replace the Oxygen sensors in front of the catalitic converters... There is dual exhaust coming from the engine to one muffler in that truck, there are a total of 2 converters and 4 O2 sensors (1 in front of converter and 1 behind it on both of the pipes) Front ones are definetely shot!!!! Be prepared to put the rear ones in shortly after!!!!! they are about $80 canadian each at the jobbers and probably more at the dealer!!!!!

Feb 24, 2009 | 1997 Chevrolet Tahoe

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