Question about 2002 Saturn L-Series

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How do i replace the front oxygen sensor on a 2002 saturn?

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  • gypsymoon100 Oct 07, 2009

    its a 2002 saturn L200 and the place where i bought the part will loan the wrench but i need to know how/where it is located and is it an easy fix that i could do myself? its a 4 cylinder btw...

  • Anonymous Mar 25, 2014

    How many oxygen sensors does a 2002 Saturn LW300 have?



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Its a 21mm or 22mm wrench or socket or if you got a o2 sensor socket perfect,then just unscrew it and unplug it and swap it out, i would be more specific but i dont know if you got a 2002 l-seires and if its 4 or 6 cylinder or if you got a s-series

Posted on Oct 07, 2009

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2 Answers

What is P0157 code for 2006 saturn Vue

Bank 2 sensor 2 fault. That would be the downstream oxygen sensor for bank 2.

Aug 03, 2015 | Saturn Cars & Trucks

2 Answers

2002 Saturn L300 - Having Problem after car heats up and you try to restart. Have Checked OBCD-2 and Scanner and see no problems. Think it is the Front ( before Catalytic Converter Oxygen Sensor???

The Oxygen sensor on the exhaust manifold/pipe sends a signal to make the fuel mixture richer while the engine is warming up. Once the engine is to operating temperature, it sends a signal to lean the fuel mixture.

If the sensor fails, then signal to lean the fuel mixture is not sent.

Oxygen sensor is recommended to be replaced at 100,000 miles.

From your description, replacing it should resolve.

Aug 06, 2008 | Saturn L300 Cars & Trucks

1 Answer

How to replace the oxygen sensor

There are two sensors, one on the exhaust manifold the other on the catalytic converter. The exhaust manifold is the easy one to replace, the other the car needs to be on a lift.

Changing the O2 sensor will improve you gas mileage,

Jul 01, 2014 | 1999 Saturn SL

1 Answer

Code p0131 in 2002 saturn

P0131 HO2S Circuit Low Voltage Bank 1 Sensor 1

Bad Oxygen sensor. Needs to be replaced. Might as well replace both sensors, cheap and easy fix. Usually on the end of the exhaust header or just after. or both, if there is 2.

Mar 05, 2014 | Nissan Xterra Cars & Trucks

2 Answers

Check engine light is on and i got error code p1133. what is that?

Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
- Vacuum leak
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical connection

The Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 90 seconds after closed loop operation has begun. The PCM determines if the front HO2S is functioning properly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.

If the Powertrain Control Module (PCM) determines that the front HO2S did not switch enough times, the PCM will set the P1133 code.

replace the o2 sensor

Dec 14, 2013 | 2006 Saturn Vue 2.2

1 Answer

I have a Toyota Rav4 2002 code 1155and1135 for fuel/air

code p1155 refers to heated oxygen sensor(HOS)-RH front heater circuit malfunction==causes -wiring--HO2S-- ECM. Replace the oxygen sensor.
Code p1135 refers to heated oxygen sensor(HO2S) -LH front-heater circuit malfunction==causes --wiring--HO2S--air induction system--fuel pressure--injectors--ECM replace the o2 sensor and have a pressure test done on the fuel manifold to check for pump/regulator/ filter problems.

Sep 06, 2013 | Cars & Trucks

1 Answer

What is p0161 service code

Oxygen O2 Sensor Circuit Low Voltage (Bank2, Sensor2). Replace the O2 sensor

Oct 12, 2012 | 2002 Saturn L-Series

1 Answer

Saturn 98 SL2 check engine light on. Car cuts out

o2 sensors don't usually cause tht kind of problem. srparate the catylist from the front pipe and take it for a spin,

May 13, 2010 | 1998 Saturn SL

1 Answer

How To Change Oxygen Sensors in 2002 Mercedes C240 Sedan?

I do not know the part numbers but you have 4 sensors. 2 pre and 2 post catalytic converter. The pre sensors are the most sensitive and are generally the ones to fail. the rear sensors usually have a heater circuit problem. If your just replacing them for routine service interval I would just do the fronts. They connect to the engine wire harness in the front of the transmission pan. You may need an o2 sensor socket to remove the fronts. They are just a 22mm. in size.

Oct 17, 2009 | 2002 Mercedes-Benz C-Class

1 Answer

Oxygen sensor location on a 2003 Saturn Ion-1

One is front of the cat, and one after the cat of the exhaust.
The OBD Scanner should tell you which bank is producing the error.
Bank one is the front one.

Thanks for using FixYa - a FixYa rating is appreciated!!

Feb 21, 2009 | 2003 Saturn ION

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