1997 Saturn SL Logo
Posted on Nov 27, 2008
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Problem code P0133 ("O2 Circuit slow response")

Code reader goes on"Bank 1, Sensor 1". Does this mean the O2 sensor needs to be replaced?? HELP, PLEASE.

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  • Anonymous Mar 27, 2014

    I have codes p0405 egr sens A circuit low. p0171&4 bank 1&2 system too lean. I have removed and cleaned egr valve with no change, code comes back. when I clear codes car surges when trying to accelerate. when code comes back surge stops. I believe this means the car runs better when bypassing the egr because of code shutdown of egr. Does this mean I need to replace the egr even though it was not bad looking and I could move the valve up and down easily?

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alex Martin

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  • Posted on Nov 27, 2008
alex Martin
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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

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I have an 03 Lincoln ls 3.9l v8 so I've replaced all the fuel injectors also the maf sensor and all 4 o2 sensors and still getting codes p0133 and p2197 what should i do
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Just change the one in Bank 1, why change good sensors.
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NEVER use aftermarket or remanufactured spares, they are not always compatible.
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Check engine light on Per my CP9125 OBD II PocketScan Code reader codes were p1131 and p0133 pd Not finding a specific definition for p1131 but I believe it has to do with the powertrain, nothing...
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I havea 99 Saturn SC2 and the P0133 error code came up. It says it's a "O2 circuit slow response (Bank 1, Sensor 1). I replaced the upstream O2 sensor (by the exhaust manifold) but it didn't fix...
Testing the the O2 sensor an other vehicle testing procdures should be done before replacing parts . The rear o2 has nothing to do with this code .
P0133 Testing H02 Sensor
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P0700 p0133 p0137 p0131 p0171 p1781
From what I can find in my book - they are (generic code)
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P 0137 O2 Sensor Cicuit Low Voltage (Bank 1 Sensor 2)
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Could not find these codes in the GM section - that is why I went with the Generic codes
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I need the trouble code for a 1998 saab 900se turbo whats wrong the codes i have are p0133 and p0705 what does this mean
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O2 Sensor Circuit Slow Response Bank 1 Sensor 1

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Transmission Range Sensor "A" Circuit (PRNDL Input)

HI. Lets start with the P0133 Code:

This code is in reference to the O2 sensor that is behind the catalytic converter(down stream sensor). You will need to test the connecting harness that links that sensor to the ECM for shorts. If the harness is ok, simply, replace that sensor.I would also advise to check for any apparent exhaust leaks as well and for proper MAF functions. You will more than likely have to replace the sensor, but ti be safe, check the areas I have stated first before you replace it.

Now, lets move on to the next code. This will be the P0705:

This code is in reference to the park/neutral position switch circuit. The only recourse here will be to replace that switch. It has failed.
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Fault code P0133 can't pass inspection.
This code does not always mean the O2 sensor is low, but if u want to replace it here is the info to do that and the part number.

The sensor you want is the one in the exhaust pipe of the engine cylinder bank that has #1 cylinder in it, as you face the engine with the hood open the cylinder bank u want is the rear bank, u will need to jack the car up and get under it to remove the sensor, u may also need a special socket to remove it, the sensor is the one that is before the catalytic converter. part number is:DENSO Part # 2344068
REAR; Before Catalyst
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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.
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May 06, 2009 • 2001 Saturn SC
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Service Engine soon light Code P0133
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Dec 11, 2008 • 2001 Hyundai Elantra
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I have an 03 Lincoln ls 3.9l v8 so I've replaced all the fuel injectors also the maf sensor and all 4 o2 sensors and still getting codes p0133 and p2197 what should i do

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