So I am out trying to find all the O2 Sensors on my Jeep. I am not sure if I have the 4 O2 Sensor set up , or the two O2 Sensor set up. I am looking all over the manifold area / Header area and do not see any sensors. However Down by the main Cat, I see one just before the Cat, and one just after the cat? Does this mean I have only two? Or am i just not able to see the ones up by the headers?
Nlburden
What year? Do you have the FSM?
You can check if you have the 4 sensors by looking at the Label attached to the underside of the hood by the driver. Read the Emissions Conrtrol Information — If it says California, you have 4 sensors
For my `04 4.0L:
You can check if you have the 4 sensors by looking at the Label attached to the underside of the hood by the driver. Read the Emissions Conrtrol Information — If it says California, you have 4 sensors
For my `04 4.0L:
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If you have three cats, two small ones off the manifold and a main cat by the t-case skid then you have 4 O2 sensors. 2000 california models, and all 2001-2006 are like this.
if you only have one cat by the t-case skid then you have 2 O2 sensors. only 97-99, and some 2000's are like this.
if you only have one cat by the t-case skid then you have 2 O2 sensors. only 97-99, and some 2000's are like this.
Thanks for the quick replies. That anwsers that right quick. There and no cats coming out of the headers. It is a 2000 TJ. With only two O2 sensors appearently. Also one more question since I made a thread about O2 Sensors. My errors I have been getting is the following:
Does this just mean the two O2 sensors are gone / faulted. What does the heater circuit malfunction mean? that the fuse for the sensor is gone as well? I just checked both O2 sensors , both wire connectors are all in tact , no damage.
PO132 O2 SENSOR CIRCUIT HIGH VOLTS BANK1 SENSOR 1
PO141 O2 SENSOR HEATER CIRCUIT MALFUNCTION BANK 1 SENSOR 2
PO138 O2 SENSOR CIRCUIT HIGH VOLTS BANK 1 SENS
Does this just mean the two O2 sensors are gone / faulted. What does the heater circuit malfunction mean? that the fuse for the sensor is gone as well? I just checked both O2 sensors , both wire connectors are all in tact , no damage.
PO132 O2 SENSOR CIRCUIT HIGH VOLTS BANK1 SENSOR 1
PO141 O2 SENSOR HEATER CIRCUIT MALFUNCTION BANK 1 SENSOR 2
PO138 O2 SENSOR CIRCUIT HIGH VOLTS BANK 1 SENS
There is a 'heater' in the O2 Sensor.
Just replace the O2 sensors.
(you'll need to re-set the OBDII code, or just wait a week or so for it to re-set itself for the check engine light to go off)
Just replace the O2 sensors.
(you'll need to re-set the OBDII code, or just wait a week or so for it to re-set itself for the check engine light to go off)
Oxygen Sensor Heater Elements:
The O2 sensor uses a Positive Thermal Co-efficient (PTC) heater element. As temperature increases, resistance increases. At ambient temperatures around 70°F, the resistance of the heating element is approximately 4.5 ohms. As the sensor’s temperature increases, resistance in the heater element increases. This allows the heater to maintain the optimum operating temperature of approximately 930°-1100°F (500°-600° C). Although the sensors operate the same, there are physical differences, due to the environment that they operate in, that keep them from being interchangeable. Maintaining correct sensor temperature at all times allows the system to enter into closed loop operation sooner. Also, it allows the system to remain in closed loop operation during periods of extended idle. In Closed Loop operation, the PCM monitors certain O2 sensor input(s) along with other inputs, and adjusts the injector pulse width accordingly. During Open Loop operation, the PCM ignores the O2 sensor input. The PCM adjusts injector pulse width based on preprogrammed (fixed) values and inputs from other sensors.
The O2 sensor uses a Positive Thermal Co-efficient (PTC) heater element. As temperature increases, resistance increases. At ambient temperatures around 70°F, the resistance of the heating element is approximately 4.5 ohms. As the sensor’s temperature increases, resistance in the heater element increases. This allows the heater to maintain the optimum operating temperature of approximately 930°-1100°F (500°-600° C). Although the sensors operate the same, there are physical differences, due to the environment that they operate in, that keep them from being interchangeable. Maintaining correct sensor temperature at all times allows the system to enter into closed loop operation sooner. Also, it allows the system to remain in closed loop operation during periods of extended idle. In Closed Loop operation, the PCM monitors certain O2 sensor input(s) along with other inputs, and adjusts the injector pulse width accordingly. During Open Loop operation, the PCM ignores the O2 sensor input. The PCM adjusts injector pulse width based on preprogrammed (fixed) values and inputs from other sensors.
I unplugged the O2 sensor for now, and never noticed a big change in the jeep. However I noticed that these hoses vibrated loose, so I stuck them back in. What are they?
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[TD] |
| 2006 JEEP WRANGLER 4.0L L6 | ||||||
NTK | 23158 | Oxygen B2S2 Sensor | $ 19.99 | $ 0.00 | 1 | $ 19.99 |
NTK | 23160 | Oxygen B2S1 Sensor | $ 20.79 | $ 0.00 | 1 | $ 20.79 |
NTK | 23159 | Oxygen B1S2 Sensor | $ 22.79 | $ 0.00 | 1 | $ 22.79 |
NTK | 23018 | Oxygen B1S1 Sensor | $ 22.79 | $ 0.00 | 1 | $ 22.79 |
Discount | $ -4.32 | |||||
Shipping | Ground | $ 7.99 | ||||
Tax | $ 6.78 | |||||
Order Total | $ 96.81 |
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Got all mine from Rock Auto for my 2006 Jeep Wrangler 4.0L . Should be in next week. Been having intermittent codes, and decided that on a 14 yr old vehicle, it's time as I think they're all OEM. [/TD]
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