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Nissan Titan Catalytic Converters

A clogged and faulty catalytic converter can increase your Nissan Titan’s emissions, which will register during an emissions test. Make sure your Titan passes by getting a new catcon here at CarParts.com. We have a wide selection of Nissan Titan catalytic converter replacements for you to choose from! Our products are all made in world-class facilities, guaranteeing OE specifications and excellent function at competitive prices. Need help? Our customer service team is ready around the clock to assist you. Shop for a new Nissan Titan catalytic converter now!
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Driver Side Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: JI960303
Vehicle Info Required to Guarantee Fit
$279.99
Product Details
Location : Front, Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter; 29 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-430Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 17122, 2502C, 16478, 40637Series : Direct Replacement SeriesTube Material : Aluminized Steel
Front, Passenger Side Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: JN960316
Vehicle Info Required to Guarantee Fit
$289.99
Product Details
Location : Front, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter; 29 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-430Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 17123, 2502A, 16479, 40638Series : Direct Replacement SeriesTube Material : Aluminized Steel
Front, Driver and Passenger Side Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: SET-JN960316-2
Vehicle Info Required to Guarantee Fit
$584.99
Product Details
Location : Front, Driver And Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter; 29 in. overall lengthComponents : (1) Front Driver Side, Manifold Catalytic Converter, (1) Front Passenger Side, Manifold Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 2EPA : N/TB6000/501-430Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 17122, 2502C, 16478, 40637, 17123, 2502A, 16479, 40638Series : Direct JC Whitney SeriesTube Material : Aluminized Steel
Front and Rear, Driver Side Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: SET-JN960317
Vehicle Info Required to Guarantee Fit
$519.99
Product Details
Location : Front And Rear, Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold ConverterComponents : (1) Front Driver Side, Manifold Catalytic Converter, (1) Rear Driver Side Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 2Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 17122, 2502C, 16478, 40637, 642031, 40639, 17126, 16488Series : Direct JC Whitney SeriesTube Material : Aluminized Steel
Front and Rear, Driver and Passenger Side Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: SET-JN960329-4
Vehicle Info Required to Guarantee Fit
$1,059.99
Product Details
Location : Front And Rear, Driver And Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold ConverterComponents : (1) Front Driver Side, Manifold Catalytic Converter, (1) Front Passenger Side, Manifold Catalytic Converter, (1) Rear Driver Side Catalytic Converter, (1) Rear Passenger Side Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 4Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 17122, 2502C, 16478, 40637, 17123, 2502A, 16479, 40638, 642031, 40639, 17126, 16488, 642115, 40640, 17127, 16489Series : Direct JC Whitney SeriesTube Material : Aluminized Steel
Rear, Driver Side Direct Replacement Series Direct Fit Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: JN960317
Vehicle Info Required to Guarantee Fit
$224.99
Product Details
Location : Rear, Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 29.25 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/30407NNGasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 642031, 40639, 17126, 16488Series : Direct Replacement SeriesTube Material : Aluminized Steel
Rear, Passenger Side Direct Replacement Series Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: JN960329
Vehicle Info Required to Guarantee Fit
$249.99
Product Details
Location : Rear, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Restricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/64805NNGasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 642115, 40640, 17127, 16489Series : Direct Replacement SeriesTube Material : Aluminized Steel
Front and Rear, Passenger Side Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: SET-JN960316
Vehicle Info Required to Guarantee Fit
$534.99
Product Details
Location : Front And Rear, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold ConverterComponents : (1) Front Passenger Side, Manifold Catalytic Converter, (1) Rear Passenger Side Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 2Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile JC Whitney limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 17123, 2502A, 16479, 40638, 642115, 40640, 17127, 16489Series : Direct JC Whitney SeriesTube Material : Aluminized Steel
Front, Passenger Side Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: REPN960316
Vehicle Info Required to Guarantee Fit
$245.99
Product Details
Location : Front, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter; 29 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-430Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 2502ASeries : Direct Replacement SeriesTube Material : Aluminized Steel
Driver Side Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: REPI960303
Vehicle Info Required to Guarantee Fit
$259.99
Product Details
Location : Front, Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter; 29 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/501-430Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 2502CSeries : Direct Replacement SeriesTube Material : Aluminized Steel
Front, Driver and Passenger Side Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: SET-REPN960316-2
Vehicle Info Required to Guarantee Fit
$480.99
Product Details
Location : Front, Driver And Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold Converter; 29 in. overall lengthComponents : (1) Front Driver Side, Manifold Catalytic Converter, (1) Front Passenger Side, Manifold Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 2EPA : N/TB6000/501-430Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 2502A, 2502CSeries : Direct Replacement SeriesTube Material : Aluminized Steel
Front and Rear, Passenger Side Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: SET-REPN960316
Vehicle Info Required to Guarantee Fit
$383.99
Product Details
Location : Front And Rear, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold ConverterComponents : (1) Front Passenger Side, Manifold Catalytic Converter, (1) Rear Passenger Side Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 2Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 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 : Direct Replacement SeriesTube Material : Aluminized Steel
Front and Rear, Driver Side Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: SET-REPN960317
Vehicle Info Required to Guarantee Fit
$383.99
Product Details
Location : Front And Rear, Driver SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold ConverterComponents : (1) Front Driver Side, Manifold Catalytic Converter, (1) Rear Driver Side Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 2Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 2502C, 40639Series : Direct Replacement SeriesTube Material : Aluminized Steel
Front and Rear, Driver and Passenger Side Catalytic Converters, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: SET-REPN960329-4
Vehicle Info Required to Guarantee Fit
$767.99
Product Details
Location : Front And Rear, Driver And Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Manifold ConverterComponents : (1) Front Driver Side, Manifold Catalytic Converter, (1) Front Passenger Side, Manifold Catalytic Converter, (1) Rear Driver Side Catalytic Converter, (1) Rear Passenger Side Catalytic ConverterRestricted States : California|Colorado|New York|MaineType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 4Gasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 2502A, 2502C, 40639, 40640Series : Direct Replacement SeriesTube Material : Aluminized Steel
Rear, Passenger Side Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 5.6L Engine
Part Number: REPN960329
Vehicle Info Required to Guarantee Fit
$157.99
Product Details
Location : Rear, Passenger SideEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Restricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/64805NNGasket Included : With GasketOxygen Sensor Ports : Factory OE PortsOxygen Sensor Port Location : Factory OE LocationsWarranty : 5-year or 50,000-mile Evan Fischer limited warrantyReturns Policy : 30-Day Return PolicyProp 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.

Interchange Part Number : 40640Series : Direct Replacement SeriesTube Material : Aluminized Steel
Page 1 of 7 | Showing 1 - 15 of 95 results

Product Questions & Answers

Q:Can i screw my 02 Sensor in as is?
Braxton R.
A:BEST ANSWERHi Braxton, Yes. you can tighten or screw in your oxygen sensor easily. The opposite way you removed the defective one(clockwise to tighten it). Show less
Jeonino E.
 
3 Questions, 1 AnswerView all Q&As >
Q:Hi there I’ve been dealing with this car ever since I got it from are used car lot I need an engine now and they also tell me I need a catalytic converter my warranty is covering the engine but the catalytic isn’t covered what would you recommend the cheapest way I can fix this? Show Less
Emil H.
A:BEST ANSWERHello! This product is one of the most convenient and reasonably priced kits on the market Show less
Mitchell D.
 
4 Questions, 1 AnswerView all Q&As >

Customer Guides

Tips to Retain the Best Working Condition of Your Nissan Titan Catalytic Converter

As much as we need vehicles in our daily lives, we must admit that they contribute a lot to the pollution we are currently experiencing. To help lessen the harmful effects of exhaust gases, vehicles are fitted with a catalytic converter. This component also improves the fuel economy since the exhaust gases are vented out of your vehicle properly. However, your catalytic converter can be damaged or worn out over time. Once this happens, your vehicle can encounter serious exhaust and emissions problems. To prevent this, here are some tips to keep your Nissan Titan catalytic converter in top condition:

  • Clean your catalytic converter with safe and appropriate tools and cleaners.

Any cleaner with strong chemicals can damage, rather than clean, your catalytic converter. Hence, you must opt for safer products. A catalytic converter cleaner that contains mild substances is very effective in eliminating dirt. It can also keep your catalytic converter well-maintained to prevent any foul smell caused by unburned gases. It can be accompanied with a warm water and soft towel to be sure that all its areas will be properly cleaned.

  • Regularly check your catalytic converter to see possible signs of damage.

To prevent any trouble especially when you are on the road, it is best to inspect your catalytic converter regularly to see any indications of damage or other problems. For instance, a rattling noise that can be heard when you shake your catalytic converter means that there are particles that accumulated in its inner chamber. Since the catalytic converter resides in the exhaust system and can't simply be visually inspected by just taking a peek underneath your ride, you should always keep an eye out for various signs of a failing catalytic converter.

  • Know the capacity of your vehicle to avoid stressing out your catalytic converter.

You must also regulate the load that your vehicle carries. Once the load becomes too heavy for the actual capacity of your vehicle, it will struggle especially when going downhill. When this happens, your catalytic converter might overheat and be cooked out. Hence, it is important to always monitor the amount of cargo that your vehicle carries.

It's amazing how science is incorporated in automotive technology! One of the evidence is your Nissan Titan catalytic converter. Chemistry made it possible to convert exhaust gases into less toxic substance through the internal chambers of your catalytic converter. However, just like other vehicle parts, this exhaust component can deteriorate over time. Once this happens, you must replace it immediately to avoid compromising your vehicle's safety. Hence, you must know the different warning signs of potential problems related to your Nissan Titan catalytic converter. Here are some of them:

Stalling upon accelerating

If you are driving and then all of a sudden your vehicle stalls when you step on the accelerator, then your catalytic converter may be the culprit. Once your catalytic converter fails, the exhaust gases may become stuck in its internal substrate. Instead of exiting your vehicle safely, the exhaust gases may cause back pressure to develop and increase. Such backpressure will cause the engine not run and breathe smoothly. This situation will then cause your vehicle to stall or jerk. As soon as you notice this, consider checking your cat con to prevent the problem from getting more serious.

Stinking smell

A stinking smell in your vehicle can indicate that your catalytic converter needs to be replaced. This component is tasked to convert the exhaust gases into less harmful compounds before they exit your vehicle, so when it starts to wear out, then it will not be able to do its functions at all. The foul smell can be mainly attributed to sulfur that is not converted to sulfur dioxide.

Decrease in fuel economy accompanied by whistling noise

When you step on the gas pedal and you notice that there is no evident change in your pace, then your catalytic converter may be encountering problems. This gas issue can be accompanied by a whistling noise upon accelerating. This problem can indicate that your catalytic converter is clogged with exhaust gases. Once this happens, the fuel economy of your vehicle will evidently drop. This problem is also a warning sign that your catalytic converter needs to be replaced.

Helpful Automotive Resources

P0430 Code: Catalyst System Efficiency Below Threshold  (Bank 2)
P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2)A failing catalytic converter breaks down less pollutants in the exhaust, resulting in lower oxygen (O2) levels overall. The downstream oxygen sensor detects the change and informs the vehicle’s computer. In turn, the computer activates the check engine light and logs the appropriate OBD-II trouble code for diagnosis by a
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3
P0042 Code: HO2S Heater Control Circuit Bank 1 Sensor 3When there are only 3 O2 sensors it’s typically because there’s only one catalyst being monitored, and “Bank 1” is the default designation when there’s only one sensor in a category. Diagram showing 3 oxygen sensors | Image Source: Richard McCuistian
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)
P0134: O2 Sensor Circuit No Activity Detected (Bank 1, Sensor 1)To learn why O2 sensors need to be heated, you may read our explanation here.