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2012 Porsche Panamera
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2012 Porsche Panamera

2012 Porsche Panamera Oxygen Sensors

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Before Catalytic Converter, Oxygen Sensor, 5-Wire, Wideband Sensor
DriveWire
Before Catalytic Converter, Oxygen Sensor, 5-Wire, Wideband Sensor
Part Number: REPA960912
Guaranteed to Fit
$56.49
Vehicle Fitment
  • 2012 Porsche Panamera S Hybrid 6 Cyl 3.0L Eng. VIN: D, Supercharged
Product Details
Location : Passenger Side, Before Catalytic ConverterNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25025049Connector Gender : Male ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Returns Policy : 30-Day Return Policy
Oxygen Sensor, 5-Wire, Heated, Wideband Sensor
DriveWire
Oxygen Sensor, 5-Wire, Heated, Wideband Sensor
Part Number: REPV960918
Guaranteed to Fit
$50.92
Vehicle Fitment
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L
  • 2012 Porsche Panamera S 8 Cyl 4.8L
  • 2012 Porsche Panamera 4 6 Cyl 3.6L
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L
  • 2012 Porsche Panamera Base 6 Cyl 3.6L
Product Details
Location : Driver Side, Before Catalytic ConverterNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitThread Size : M18-1.5 Thread SizeMounting Style : Threaded-in Mounting StyleHex Size : 7/8 in. Hex SizeInterchange Part Number : 25025040Connector Gender : Male ConnectorWarranty : 1-year DriveWire unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Returns Policy : 30-Day Return Policy
Oxygen Sensor, Sold individually, 5-wire, Walker Products Aftermarket Base Sensor
Walker Products®
Oxygen Sensor, Sold individually, 5-wire, Walker Products Aftermarket Base Sensor
Part Number: WKP35035046
Guaranteed to Fit
$100.99
Vehicle Fitment
  • 2012 Porsche Panamera S Hybrid 6 Cyl 3.0L Eng. VIN: D, Supercharged
Product Details
Location : Passenger Side, Before Catalytic ConverterNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 21.65 in. Wire LengthWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Aftermarket Base Sensor
Oxygen Sensor, Sold individually, 4-wire, OE Replacement Series
Bosch®
Oxygen Sensor, Sold individually, 4-wire, OE Replacement Series
Part Number: BS16177
Guaranteed to Fit
$43.49
Vehicle Fitment
  • 2012 Porsche Panamera 4 6 Cyl 3.6L
  • 2012 Porsche Panamera Base 6 Cyl 3.6L
  • 2012 Porsche Panamera S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L
Product Details
Location : Downstream, Driver SideType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWarranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
Upstream, Driver Side Oxygen Sensor, Sold individually, 5-wire, 8 Cyl 4.8L, OE Replacement Series - Upstream, Driver Side
Bosch®
Upstream, Driver Side Oxygen Sensor, Sold individually, 5-wire, 8 Cyl 4.8L, OE Replacement Series - Upstream, Driver Side
Part Number: BS17218
Guaranteed to Fit
$88.49
Vehicle Fitment
  • 2012 Porsche Panamera Base 6 Cyl 3.6L
  • 2012 Porsche Panamera 4 6 Cyl 3.6L
  • 2012 Porsche Panamera S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L
Product Details
Location : Upstream, Driver SideType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWarranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
After Catalytic Converter, Driver Side Oxygen Sensor, O.E. Quality Replacement Sensor, Sold individually, 4-wire, 6 Cyl 3.6L - After Catalytic Converter, Driver Side
Denso®
After Catalytic Converter, Driver Side Oxygen Sensor, O.E. Quality Replacement Sensor, Sold individually, 4-wire, 6 Cyl 3.6L - After Catalytic Converter, Driver Side
Part Number: NP2344475
Guaranteed to Fit
$89.99
Vehicle Fitment
  • 2012 Porsche Panamera 4 6 Cyl 3.6L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera S 8 Cyl 4.8L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera Base 6 Cyl 3.6L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L O.E. Quality Replacement Sensor
Product Details
Location : After Catalytic Converter, Driver SideType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 36.02 in. Wire LengthThread Size : M18 Thread SizeInterchange Part Number : 15730, SG300Connector Gender : Female ConnectorWarranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Oxygen Sensor, Sold individually, 5-wire
Denso®
Oxygen Sensor, Sold individually, 5-wire
Part Number: NP2345036
Guaranteed to Fit
$123.49
Vehicle Fitment
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera S 8 Cyl 4.8L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera 4 6 Cyl 3.6L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera Base 6 Cyl 3.6L O.E. Quality Replacement Sensor
Product Details
Location : Before Catalytic Converter, Driver SideType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 28.78 in. Wire LengthThread Size : M18 Thread SizeConnector Gender : Male ConnectorWarranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Upstream, Passenger Side Oxygen Sensor, Sold individually, 5-wire, 6 Cyl 3.6L, OE Replacement Series - Upstream, Passenger Side
Bosch®
Upstream, Passenger Side Oxygen Sensor, Sold individually, 5-wire, 6 Cyl 3.6L, OE Replacement Series - Upstream, Passenger Side
Part Number: BS17220
Guaranteed to Fit
$88.99
Vehicle Fitment
  • 2012 Porsche Panamera 4 6 Cyl 3.6L
  • 2012 Porsche Panamera Base 6 Cyl 3.6L
  • 2012 Porsche Panamera S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L
Product Details
Location : Upstream, Passenger SideType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWarranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
Passenger Side - After Catalytic Converter Oxygen Sensor, Sold individually, 4-wire, 6 Cyl 3.6L, Walker Products Original Equipment Base Sensor - After Catalytic Converter - Passenger Side - After Catalytic Converter
Walker Products®
Passenger Side - After Catalytic Converter Oxygen Sensor, Sold individually, 4-wire, 6 Cyl 3.6L, Walker Products Original Equipment Base Sensor - After Catalytic Converter - Passenger Side - After Catalytic Converter
Part Number: WKP25024934
Guaranteed to Fit
$101.49
Vehicle Fitment
  • 2012 Porsche Panamera 4 6 Cyl 3.6L
  • 2012 Porsche Panamera Base 6 Cyl 3.6L
  • 2012 Porsche Panamera S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L
  • 2012 Porsche Panamera S Hybrid 6 Cyl 3.0L
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L
Product Details
Location : Passenger Side - After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 48.23 in. Wire LengthWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Original Equipment Base Sensor
After Catalytic Converter Oxygen Sensor, Eng. VIN: D, Supercharged, Sold individually, 4-wire, 6 Cyl 3.0L, Walker Products Aftermarket Base Sensor - After Catalytic Converter - Passenger Side, After Catalytic Converter
Walker Products®
After Catalytic Converter Oxygen Sensor, Eng. VIN: D, Supercharged, Sold individually, 4-wire, 6 Cyl 3.0L, Walker Products Aftermarket Base Sensor - After Catalytic Converter - Passenger Side, After Catalytic Converter
Part Number: WKP35034108
Guaranteed to Fit
$70.99
Vehicle Fitment
  • 2012 Porsche Panamera Base 6 Cyl 3.6L Naturally Aspirated
  • 2012 Porsche Panamera 4 6 Cyl 3.6L Naturally Aspirated
  • 2012 Porsche Panamera S 8 Cyl 4.8L Naturally Aspirated
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L Turbocharged
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L Naturally Aspirated
  • 2012 Porsche Panamera S Hybrid 6 Cyl 3.0L Eng. VIN: D, Supercharged
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L Turbocharged
Product Details
Location : Passenger Side, After Catalytic ConverterNotes : HeatedType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 48.23 in. Wire LengthWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Aftermarket Base Sensor
Passenger Side - Before Catalytic Converter Oxygen Sensor, Sold individually, 5-wire, 6 Cyl 3.6L, Walker Products Original Equipment Base Sensor - Passenger Side - Before Catalytic Converter
Walker Products®
Passenger Side - Before Catalytic Converter Oxygen Sensor, Sold individually, 5-wire, 6 Cyl 3.6L, Walker Products Original Equipment Base Sensor - Passenger Side - Before Catalytic Converter
Part Number: WKP25025073
Guaranteed to Fit
$106.49
Vehicle Fitment
  • 2012 Porsche Panamera 4 6 Cyl 3.6L
  • 2012 Porsche Panamera Base 6 Cyl 3.6L
  • 2012 Porsche Panamera S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L
Product Details
Location : Passenger Side - Before Catalytic ConverterNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 41.34 in. Wire LengthWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Original Equipment Base Sensor
After Catalytic Converter, Passenger Side Oxygen Sensor, O.E. Quality Replacement Sensor, Sold individually, 4-wire, 6 Cyl 3.6L - After Catalytic Converter - After Catalytic Converter, Passenger Side
Denso®
After Catalytic Converter, Passenger Side Oxygen Sensor, O.E. Quality Replacement Sensor, Sold individually, 4-wire, 6 Cyl 3.6L - After Catalytic Converter - After Catalytic Converter, Passenger Side
Part Number: NP2344474
Guaranteed to Fit
$108.49
Vehicle Fitment
  • 2012 Porsche Panamera 4 6 Cyl 3.6L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera Base 6 Cyl 3.6L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera S 8 Cyl 4.8L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera S Hybrid 6 Cyl 3.0L O.E. Quality Replacement Sensor
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L O.E. Quality Replacement Sensor
Product Details
Location : After Catalytic Converter, Passenger SideType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 47.24 in. Wire LengthThread Size : M18 Thread SizeInterchange Part Number : 15730, SG300Connector Gender : Female ConnectorWarranty : 1-year Denso limited WarrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Oxygen Sensor, Sold individually, 4-wire, OE Replacement Series
Bosch®
Oxygen Sensor, Sold individually, 4-wire, OE Replacement Series
Part Number: BS16140
Guaranteed to Fit
$110.49
Vehicle Fitment
  • 2012 Porsche Panamera Base 6 Cyl 3.6L
  • 2012 Porsche Panamera 4 6 Cyl 3.6L
  • 2012 Porsche Panamera S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L
Product Details
Location : Downstream, Passenger SideType : 4-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWarranty : 1-year Bosch limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : CarParts EuroSeries : OE Replacement Series
Passenger Side, Before Catalytic Converter Oxygen Sensor, Eng. VIN: D, Supercharged, Sold individually, 5-wire, 6 Cyl 3.0L, Walker Products Original Equipment Base Sensor - Passenger Side, Before Catalytic Converter
Walker Products®
Passenger Side, Before Catalytic Converter Oxygen Sensor, Eng. VIN: D, Supercharged, Sold individually, 5-wire, 6 Cyl 3.0L, Walker Products Original Equipment Base Sensor - Passenger Side, Before Catalytic Converter
Part Number: WKP25025049
Guaranteed to Fit
$100.99
Vehicle Fitment
  • 2012 Porsche Panamera S Hybrid 6 Cyl 3.0L Eng. VIN: D, Supercharged
Product Details
Location : Passenger Side, Before Catalytic ConverterNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 21.65 in. Wire LengthInterchange Part Number : REPA960912Warranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Original Equipment Base Sensor
Driver Side, Before Catalytic Converter Oxygen Sensor, Turbocharged, Sold individually, 5-wire, 8 Cyl 4.8L, Walker Products Aftermarket Base Sensor - Driver Side, Before Catalytic Converter
Walker Products®
Driver Side, Before Catalytic Converter Oxygen Sensor, Turbocharged, Sold individually, 5-wire, 8 Cyl 4.8L, Walker Products Aftermarket Base Sensor - Driver Side, Before Catalytic Converter
Part Number: WKP35035067
Guaranteed to Fit
$93.99
Vehicle Fitment
  • 2012 Porsche Panamera 4S 8 Cyl 4.8L Naturally Aspirated
  • 2012 Porsche Panamera Turbo S 8 Cyl 4.8L Turbocharged
  • 2012 Porsche Panamera S 8 Cyl 4.8L Naturally Aspirated
  • 2012 Porsche Panamera 4 6 Cyl 3.6L Naturally Aspirated
  • 2012 Porsche Panamera Turbo 8 Cyl 4.8L Turbocharged
  • 2012 Porsche Panamera Base 6 Cyl 3.6L Naturally Aspirated
Product Details
Location : Driver Side, Before Catalytic ConverterNotes : Wideband sensorType : 5-wireQuantity Sold : Sold individuallyProduct Fit : Direct FitWire Length : 29.53 in. Wire LengthWarranty : 90-day Walker Products limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Series : Walker Products Aftermarket Base Sensor
Page 1 of 3 | Showing 1 - 15 of 38 results

Top Rated Products

DriveWire Oxygen Sensor, 5-Wire, Heated, Wideband Sensor
$50.92( Review)
Bought this part and my car is running great I will buy more parts from u guys
Perry B.
VERIFIED PURCHASER
DriveWire Before Catalytic Converter, Oxygen Sensor, 5-Wire, Wideband Sensor
$56.49( Review)
The Carparts is an autoParts that sells you what you need, with all the online tools See More
Jose R.
VERIFIED PURCHASER

Popular Products

Product Questions & Answers

Walker Products Passenger Side, Before Catalytic Converter Oxygen Sensor, Eng. VIN: D, Supercharged, Sold individually, 5-wire, 6 Cyl 3.0L, Walker Products Original Equipment Base Sensor - Passenger Side, Before Catalytic Converter
$100.99
Q:2011 ford f150 4x4 xlt?
roy g
A:BEST ANSWERHi Roy,This fits 2011 F150 XLT 8 Cyl 5.0L and 6 Cyl 3.5L with VIN: F, gas type, fuel injected, naturally aspirated and FLEX fuel engine VIN: T, turbocharged. To check the fitment please use our Vehicle Selector — which can be found towards the top of the homepage as well as all categories, search results, and product pages — can help verify if a part will fit your specific application. To enter your application, simply select your vehicle’s year, make, model, sub-model, and engine type and click “Go.” Once your application is selected, you’ll see a “Guaranteed to Fit” badge if the part will fit, and we recommend that you also double-check Your Vehicle Fit Details as well as the Vehicle Fitment Information table on the product page. Show less
Aldrin P.
 
1 Question, 1 AnswerView all Q&As >

Helpful Automotive Resources

P2187 Code: System too Lean at Idle (Bank 1)
P2187 Code: System too Lean at Idle (Bank 1)Note that there is only one bank if your car has a straight engine and the scan tool will always refer to that bank as “Bank 1.” P2187 code indicates that your vehicle’s computer detected a potential issue with the fuel mixture at idle.
P2270 Code: O2 Sensor Signal Biased / Stuck Lean (Bank 1, Sensor 2)
P2270 Code: O2 Sensor Signal Biased / Stuck Lean (Bank 1, Sensor 2)Bank 1 is where the #1 spark plug is. O2 sensor 1/1 is the upstream sensor on Bank 1 (different for a Ford than for a Chevy or a Dodge), and O2 sensor 1/2 is the downstream sensor on Bank 1. O2 2/1 is upstream on Bank 2 and O2
P0141 Code: Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)
P0141 Code: Oxygen Sensor Heater Circuit Malfunction (Bank 1, Sensor 2)With that in mind, it’s important to note that Bank 1 is always where the number 1 cylinder is located. Thus, on Ford pickups, Bank 1 is the passenger side bank, but on Chevy and Dodge pickups, Bank 1 is the driver side bank. You need to know this, or
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3Bank 1 is the side of the engine where the #1 cylinder is located. P0042 code is set when your car’s PCM determines a potential problem with the heater element circuit of the oxygen sensor.
P0135 Code: Heated O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
P0135 Code: Heated O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)Diagnostic trouble code (DTC) P0135 stands for “Oxygen O2 Sensor Heater Circuit Malfunction (Bank 1, Sensor 1).” It is set when the car’s primary computer—also called the powertrain control module or PCM—determines that the heated oxygen sensor (HO2S) 1 heater current is higher or lower than the ideal amp for
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)The Bank 1 portion of the code refers to the side of the engine with the number one cylinder. Sensor 1 refers to the upstream O2 sensor.