Q:What is Differences Between upstream and downstream O2 Sensor?
A:
2X Oxygen O2 Sensor New for Jeep Grand Cherokee L6 V6 V8 Up&Downstream 234-4029
Package Include:
2 pieces
OE:
234-4545
Q&A:
Q:What is Differences Between upstream and downstream O2 Sensor?
A:
The upstream oxygen sensor is located before the catalytic converter. This measures the level of pollutants coming directly from the engine. It also senses any raw, unburned fuel coming from the combustion chambers.
The downstream oxygen sensor is located directly after the catalytic converter. This sensor measures the pollutants making it through the converter and out of the tailpipe. The data from this sensor is compared to that of the upstream sensor. If the data between the two sensors becomes more similar, the vehicle's computer may trigger a catalyst inefficiency check engine code, which turns on the Check Engine light.
Q:When should I replace oxygen sensor ? A:If the car fuel consumption increased significantly, the oxygen sensor failure likely, should check the sensor.
Type of Oxygen Sensor
Range of Year
Service Interval (Advice)
Unheated 1 or 2 Wires
2 pieces
OE:
234-4545
Q&A:
Q:What is Differences Between upstream and downstream O2 Sensor?
A:
The upstream oxygen sensor is located before the catalytic converter. This measures the level of pollutants coming directly from the engine. It also senses any raw, unburned fuel coming from the combustion chambers.
The downstream oxygen sensor is located directly after the catalytic converter. This sensor measures the pollutants making it through the converter and out of the tailpipe. The data from this sensor is compared to that of the upstream sensor. If the data between the two sensors becomes more similar, the vehicle's computer may trigger a catalyst inefficiency check engine code, which turns on the Check Engine light.
Q:When should I replace oxygen sensor ? A:If the car fuel consumption increased significantly, the oxygen sensor failure likely, should check the sensor.
Type of Oxygen Sensor
Range of Year
Service Interval (Advice)
Unheated 1 or 2 Wires
1976 to Early-1990's
30000 to 50000 km
Heated 3 or 4 Wires
Mid-1980's to mid-1990's
60000 km
Modern 4 or 5 wires
Mid-1990's to Now
100000 km
Q:What is a California emissions sensor? How do I know if I need one?
A:
A California emissions O2 sensor is meant for vehicles that are designed to meet California emission regulations. Such vehicles should have a sticker under the hood or on the driver’s door jamb that identify them.
Q:How should I notice when install oxygen sensor ? A:
Remove the tools: wrench M22
Before install,make sure installation location surface cleaning
Oxygen sensor installation torque is 40 ~ 50 nm, and the installation of the fat use regulations
Fixed through the clamp,if wiring harness is longer than the original
2X Oxygen O2 Sensor New for Jeep Grand Cherokee L6 V6 V8 Up&Downstream 234-4029
Package Include:
2 pieces
OE:
234-4545
Q&A:
Q:What is Differences Between upstream and downstream O2 Sensor?
A:
The upstream oxygen sensor is located before the catalytic converter. This measures the level of pollutants coming directly from the engine. It also senses any raw, unburned fuel coming from the combustion chambers.
The downstream oxygen sensor is located directly after the catalytic converter. This sensor measures the pollutants making it through the converter and out of the tailpipe. The data from this sensor is compared to that of the upstream sensor. If the data between the two sensors becomes more similar, the vehicle's computer may trigger a catalyst inefficiency check engine code, which turns on the Check Engine light.
Q:When should I replace oxygen sensor ? A:If the car fuel consumption increased significantly, the oxygen sensor failure likely, should check the sensor.
Type of Oxygen Sensor
Range of Year
Service Interval (Advice)
Unheated 1 or 2 Wires
2 pieces
OE:
234-4545
Q&A:
Q:What is Differences Between upstream and downstream O2 Sensor?
A:
The upstream oxygen sensor is located before the catalytic converter. This measures the level of pollutants coming directly from the engine. It also senses any raw, unburned fuel coming from the combustion chambers.
The downstream oxygen sensor is located directly after the catalytic converter. This sensor measures the pollutants making it through the converter and out of the tailpipe. The data from this sensor is compared to that of the upstream sensor. If the data between the two sensors becomes more similar, the vehicle's computer may trigger a catalyst inefficiency check engine code, which turns on the Check Engine light.
Q:When should I replace oxygen sensor ? A:If the car fuel consumption increased significantly, the oxygen sensor failure likely, should check the sensor.
Type of Oxygen Sensor
Range of Year
Service Interval (Advice)
Unheated 1 or 2 Wires
1976 to Early-1990's
30000 to 50000 km
Heated 3 or 4 Wires
Mid-1980's to mid-1990's
60000 km
Modern 4 or 5 wires
Mid-1990's to Now
100000 km
Q:What is a California emissions sensor? How do I know if I need one?
A:
A California emissions O2 sensor is meant for vehicles that are designed to meet California emission regulations. Such vehicles should have a sticker under the hood or on the driver’s door jamb that identify them.
Q:How should I notice when install oxygen sensor ? A:
Remove the tools: wrench M22
Before install,make sure installation location surface cleaning
Oxygen sensor installation torque is 40 ~ 50 nm, and the installation of the fat use regulations
Fixed through the clamp,if wiring harness is longer than the original
Item Specifics
Brand
SCITOO
Manufacturer Part Number
CNB129DF69722SG
Manufacturer Warranty
1 Year
Superseded Part Number
AO2344274 AO2344744
OE/OEM Part Number
234-4547 234-4545
Number of Sensors
2
Wire Quantity
4
Sensor Type
Oxygen Sensor
Placement on Vehicle
Rear, Front, Lower, Upper
Features
Direct Fit, Easy Installation
Length
260mm
Length of sensor 2
260mm
Condition
New
Shipping
1. Package handling takes about 2 business days at our warehouse, so please make sure entering correct payment and shipping information before checking out. Once your payment is completed, we are not going to accept any more changes to your order. 2.All domestic orders will be shipped via USPS, UPS or Fedex from our US warehouse and usually arrives to your door in about 2-7 business days. 3.Local pick up is not available. 4.International Buyers C Please Note: a. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. b. Please check with your country customs office to determine what these additional costs will be prior to bidding/buying. ]
Payment
1.We accept multiple payment methods, such as VISA, Master Card, etc..
2.Please do not use the note field to indicate us to ship to other address. The note there will NOT be read. If you want to change the shipping address, please contact us by eBay messages.
3.(if you want cancel orders or change address pls contact us within 6 hours after payment,or we are not responsible for shipping a replacement.)
4.Payment must be received within 7 days as auction ended or order might be delayed.
Returns
We stand behind every product we sell.
All of our brand new items come with a 30-Days money-back or exchange guarantee.
Customer Services
Q: How do I pay for my purchase? A: MY store accepts VISA, Master Card, etc.. Q: When will the item be shipped out? A: This item will be shipped with 2 business day once payment completed. Q: Where is my tracking number? A: Please log on your account, click "my eBay"-->"my summary", or open your email box and find the shipping notification email. Q: How do I return an item? A: My tore accepts returns. Items must be returned within 60 days. Refunds will be given as money back. Please contact our customer service before you return an item. ]
Feedback
1. We will leave a feedback once we get your payment. 2. If you are dissatisfied for any reason, please do contact us a feedback. We will work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave a feedback to all our customers. 3. If you are satisfied with the product you received, wish you can leave us a feedback.
2X Oxygen O2 Sensor New for Jeep Grand Cherokee L6 V6 V8 Up&Downstream 234-4029
Package Include:
2 pieces
OE:
234-4545
Q&A:
Q:What is Differences Between upstream and downstream O2 Sensor?
A:
The upstream oxygen sensor is located before the catalytic converter. This measures the level of pollutants coming directly from the engine. It also senses any raw, unburned fuel coming from the combustion chambers.
The downstream oxygen sensor is located directly after the catalytic converter. This sensor measures the pollutants making it through the converter and out of the tailpipe. The data from this sensor is compared to that of the upstream sensor. If the data between the two sensors becomes more similar, the vehicle's computer may trigger a catalyst inefficiency check engine code, which turns on the Check Engine light.
Q:When should I replace oxygen sensor ? A:If the car fuel consumption increased significantly, the oxygen sensor failure likely, should check the sensor.
Type of Oxygen Sensor
Range of Year
Service Interval (Advice)
Unheated 1 or 2 Wires
2 pieces
OE:
234-4545
Q&A:
Q:What is Differences Between upstream and downstream O2 Sensor?
A:
The upstream oxygen sensor is located before the catalytic converter. This measures the level of pollutants coming directly from the engine. It also senses any raw, unburned fuel coming from the combustion chambers.
The downstream oxygen sensor is located directly after the catalytic converter. This sensor measures the pollutants making it through the converter and out of the tailpipe. The data from this sensor is compared to that of the upstream sensor. If the data between the two sensors becomes more similar, the vehicle's computer may trigger a catalyst inefficiency check engine code, which turns on the Check Engine light.
Q:When should I replace oxygen sensor ? A:If the car fuel consumption increased significantly, the oxygen sensor failure likely, should check the sensor.
Type of Oxygen Sensor
Range of Year
Service Interval (Advice)
Unheated 1 or 2 Wires
1976 to Early-1990's
30000 to 50000 km
Heated 3 or 4 Wires
Mid-1980's to mid-1990's
60000 km
Modern 4 or 5 wires
Mid-1990's to Now
100000 km
Q:What is a California emissions sensor? How do I know if I need one?
A:
A California emissions O2 sensor is meant for vehicles that are designed to meet California emission regulations. Such vehicles should have a sticker under the hood or on the driver’s door jamb that identify them.
Q:How should I notice when install oxygen sensor ? A:
Remove the tools: wrench M22
Before install,make sure installation location surface cleaning
Oxygen sensor installation torque is 40 ~ 50 nm, and the installation of the fat use regulations
Fixed through the clamp,if wiring harness is longer than the original
Shipping
1. Package handling takes about 2 business days at our warehouse, so please make sure entering correct payment and shipping information before checking out. Once your payment is completed, we are not going to accept any more changes to your order. 2.All domestic orders will be shipped via USPS, UPS or Fedex from our US warehouse and usually arrives to your door in about 2-7 business days. 3.Local pick up is not available. 4.International Buyers C Please Note: a. Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyers responsibility. b. Please check with your country customs office to determine what these additional costs will be prior to bidding/buying. ]
Payment
1.We accept multiple payment methods, such as VISA, Master Card, etc..
2.Please do not use the note field to indicate us to ship to other address. The note there will NOT be read. If you want to change the shipping address, please contact us by eBay messages.
3.(if you want cancel orders or change address pls contact us within 6 hours after payment,or we are not responsible for shipping a replacement.)
4.Payment must be received within 7 days as auction ended or order might be delayed.
Returns
We stand behind every product we sell.
All of our brand new items come with a 30-Days money-back or exchange guarantee.
Customer Services
Q: How do I pay for my purchase? A: MY store accepts VISA, Master Card, etc.. Q: When will the item be shipped out? A: This item will be shipped with 2 business day once payment completed. Q: Where is my tracking number? A: Please log on your account, click "my eBay"-->"my summary", or open your email box and find the shipping notification email. Q: How do I return an item? A: My tore accepts returns. Items must be returned within 60 days. Refunds will be given as money back. Please contact our customer service before you return an item. ]
Feedback
1. We will leave a feedback once we get your payment. 2. If you are dissatisfied for any reason, please do contact us a feedback. We will work hard to make sure EVERY CUSTOMER 100% SATISFIED and resolve any problem for you and always leave a feedback to all our customers. 3. If you are satisfied with the product you received, wish you can leave us a feedback.
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