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Jeep Cherokee Catalytic Converters

If your Jeep Cherokee is starting to belch black smoke, then your catalytic converter might need replacing. Lower your emissions and keep your Jeep running well by replacing your Jeep Cherokee catalytic converter with a new one from CarParts.com. Our parts are OE-grade and are made with the highest quality standards to ensure quality and durability. Browse through our catalog now and get the best deals when you shop now!
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Center Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 4.0L Engine
Part Number: JJ960301
Vehicle Info Required to Guarantee Fit
$149.99
Product Details
Location : Center, RearEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 21.75 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/69005NNGasket Included : Without 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 : 15820Series : Direct Replacement SeriesTube Material : Aluminized Steel
Center Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME), 4.0L Engine
Part Number: REPJ960301
Vehicle Info Required to Guarantee Fit
$132.99
Product Details
Location : Center, RearEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 21.75 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyEPA : N/TB6000/69005NNGasket Included : Without 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 : 15820Series : Direct Replacement SeriesTube Material : Aluminized Steel
Front, 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)
Part Number: EC96030042
Vehicle Info Required to Guarantee Fit
$265.49
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 : 20 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM 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.

Replaces OE Number : 68105874ADInterchange Part Number : 641544, 0790029, 1448, 68105874ADTube Material : Stainless 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)
Part Number: EC96030041
Vehicle Info Required to Guarantee Fit
$260.41
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 : 18 in. overall lengthType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM 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.

Replaces OE Number : 68105875ADInterchange Part Number : 641566, 0790030, 1470, 68105875ADTube Material : Stainless Steel
Front, Driver and 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)
Part Number: SET-EC96030041
Vehicle Info Required to Guarantee Fit
$508.99
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)Type : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Set of 2Gasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM 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.

Replaces OE Number : 68105875AD, 68105874ADInterchange Part Number : 641566, 0790030, 1470, 68105875AD, 641544, 0790029, 1448, 68105874ADTube Material : Stainless Steel
Front 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: EC96030029
Vehicle Info Required to Guarantee Fit
$334.99
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 18.38 in. Overall Length; 8 Bolt Welded Flange Inlet Type A; 4 Bolt Welded Flange Outlet Type A; Ceramic Substrate MaterialType : Manifold ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM 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.

Replaces OE Number : 68315810AAInterchange Part Number : 641513, 0790028, 19620, 68315810AATube Material : Stainless Steel
19018 Front Exact Fit Series Catalytic Converter, 6, 4.0 Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV19018
Vehicle Info Required to Guarantee Fit
$323.99
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Without air tube port provisionRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 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 : Exact Fit SeriesTube Material : Aluminized Steel
23218 Center Standard 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: DAV23218
Vehicle Info Required to Guarantee Fit
$127.49
Product Details
Location : CenterEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 23.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 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 : Labor Day SaleSeries : Standard SeriesTube Material : Aluminized Steel
99205HM No Returns Accepted - Catalytic Converter, Federal EPA Standard, 46-State Legal (Cannot ship to or be used in vehicles originally purchased in CA, CO, NY or ME), Semi-Universal (Welding Required)
Part Number: M6699205HM
Vehicle Info Required to Guarantee Fit
$178.00
Product Details
Location : Front Or Rear, Driver Or Passenger Side, Rear, Front, Driver Side Or Rear, Passenger Side, Rear, Passenger Side, Front, Driver Or Passenger Side, Driver Side, Rear, Driver Or Passenger Side, Front, Driver Or Passenger Side, Front Or Rear, Front, Driver Side Or Rear, Driver Or Passenger Side, Front, Passenger Side, 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 : 2.25 in. Inlet/Outlet; 13 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketWarranty : Lifetime Magnaflow Limited WarrantyReturns Policy : NON-RETURNABLEProp 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 : Magnaflow Catalytic Converter SaleSeries : Heavy Metal SeriesTube Material : Stainless Steel
19620 Front Exact Fit Series Catalytic Converter, 4, 2.4 Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV19620
Vehicle Info Required to Guarantee Fit
$432.99
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 14 in. W x 8 in. H; 25 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 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 : Exact Fit SeriesTube Material : Aluminized Steel
19092 Front Exact Fit Series Catalytic Converter, 6, 4.0 Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV19092
Vehicle Info Required to Guarantee Fit
$374.49
Product Details
Location : FrontEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : With air tube port provision; 46.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 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 : Exact Fit SeriesTube Material : Aluminized Steel
14224 Rear Exact Fit 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: DAV14224
Vehicle Info Required to Guarantee Fit
$145.49
Product Details
Location : RearEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Without air tube port provision; 25.25 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 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 : Exact Fit SeriesTube Material : Aluminized Steel
14223 Center Exact Fit Series Catalytic Converter, 8, 5.9 Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)
Part Number: DAV14223
Vehicle Info Required to Guarantee Fit
$166.99
Product Details
Location : CenterEmissions : 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 individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 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.

Replaces OE Number : 14223, 14223NSeries : Exact Fit SeriesTube Material : Aluminized Steel
14222 Center Exact Fit 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: DAV14222
Vehicle Info Required to Guarantee Fit
$202.99
Product Details
Location : CenterEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 27 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 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 : Exact Fit SeriesTube Material : Aluminized Steel
43219 Center Exact Fit 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: DAV43219
Vehicle Info Required to Guarantee Fit
$259.49
Product Details
Location : CenterEmissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 23.5 in. overall lengthRestricted States : California|Colorado|New York|MaineType : Catalytic ConverterProduct Fit : Direct FitRecommended Use : OE ReplacementQuantity Sold : Sold individuallyGasket Included : With GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : 25,000-mile Davico limited warranty on catalyst emission properties and 5-year or 50,000-mile limited warranty on tube, shell and weldsProp 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 : Exact Fit SeriesTube Material : Aluminized Steel
Page 1 of 13 | Showing 1 - 15 of 185 results

Top Rated Products

Fit great but they use a CHEAP paint and it burns and smokes for the first 50 miles.
Scott G.
VERIFIED PURCHASER

Customer Guides

How to Prolong the Life of Your Jeep Cherokee Catalytic Converter

The catalytic converter of your Jeep Cherokee is responsible for keeping harmful exhaust compounds at a minimum. Keeping it well-maintained helps prevent premature wear and tear. Fortunately, you don't have to visit a mechanic just to maintain its tiptop shape. Keep your Jeep Cherokee catalytic converter in its excellent working condition by following some of these trouble-free maintenance tips:

  • Don't forget to perform regular engine tune-ups.

Most of the time, a catalytic converter goes bad just because a few simple preventive maintenance routines are not performed. Keep in mind that regular engine tune-ups can save you from catcon-related problems. Start by checking the appearance and level of the engine oil. Top it up if it's below the normal level and change it if it appears to be sludgy. You can also check the exhaust and fuel system for signs of leakage; patch up holes if necessary to keep your catcon from being contaminated.

  • Clean your catalytic converter regularly.

Cleaning the surface of your catalytic converter is a good preventive maintenance practice that will benefit your vehicle in the long run. This keeps dirt and grime from building up and saves you from the headache caused by a corroded catcon. You can do this by simply wiping its surface with a cleaning cloth. You can also get rid of stuck debris or stubborn dirt using a high-pressure washer.

  • Perform routine inspection on the catcon and its components.

Catalytic converters are unfortunately sensitive. One damaged component from your fuel and exhaust system can render your catcon useless. To prevent expensive catcon replacement, regularly check its condition. You should also inspect the condition of the components that are necessary to its operation including the oxygen sensor, spark plugs, check valve, and fuel injectors. Make sure they're all in the right shape to prevent your catcon from getting damaged before the end of its service life. Replace broken parts if you found any.

  • Drive your Cherokee with care.

Unlike your catalytic converter, the humps and bumps on the road won't bend or deform no matter how many times you run over it. Keep in mind that your catcon is not impervious to damage; it's no match against severe physical impacts. So steer clear of bumps and ruts the next time you take your vehicle out for a ride.

Your Jeep Cherokee catalytic converter is a part of the exhaust system that's designed to turn your car's harmful fumes into eco-friendly emissions. It plays an important role to the engine's overall performance and this is why you should always be aware of when your catcon is in need of a repair or replacement. Here are some easy tips for diagnosing problems with your Jeep Cherokee catalytic converter:

Decreased fuel efficiency and engine performance

Is your car having trouble accelerating? Or perhaps its fuel mileage went noticeably lower than usual? If you've recently noticed one or both of these scenarios from your Jeep Cherokee, you might want to check on the condition of your catalytic converter to see if it's the root cause of your problem.

Stalling, sluggishness, and poor fuel efficiency are some of the common signs that your catalytic converter has become clogged. A plugged catcon restricts your engine from breathing and causes backpressure build-up, consequently affecting its overall performance. To verify if your exhaust system is actually restricted, test it using a vacuum gauge. Monitor the reading carefully, if the needle steadily drops while you're revving up the engine, it's likely that your catcon is clogged.

Pungent odor

If you start smelling rotten eggs from your car and you're pretty positive that it's not coming from you or your passengers, then you better make sure your catalytic converter is not on the verge of melting down. The pungent sulfuric smell is a warning sign that too much fuel is flooding the catcon, causing it to run on a too-rich condition. This is usually caused by a broken oxygen sensor. You can confirm if your catcon is running on a rich fuel mixture by simply using a pyrometer to test its inlet and outlet temperature. The outlet temperature should always be 200 degrees Fahrenheit lower the inlet temperature.

Excessive noise

An excessive rattling noise from your catalytic converter is an indication that the ceramic catalyst inside it has collapsed. You can also tap your catcon lightly with a rubber mallet to see if it will rattle. The ceramic honeycomb of the catcon melts down due to various reasons including extreme amount of heat and intense physical impact. This is an irreparable damage and you have no choice but to replace your catalytic converter immediately to save your engine from its negative effects.

How can a high flow catalytic converter improve the performance of a Jeep Cherokee?

A high flow catalytic converter is a performance modification that is focused on increasing the flow capability of the exhaust system. When the flow of the system is improved, the engine is allowed to breathe better, making it burn fuel more efficiently and produce more power.

 

How can the engine damage a Jeep Cherokee catalytic converter?

A vehicle's engine is directly connected to the catalytic converter. This means that it is possible for one of these parts to cause damage to the other. An engine that is not working properly can result in unnecessary wearing of the catalytic converter. This happens when there is incorrect fuel and air mixture that passes through the converter, messing up with the catalysts inside. Aside from this, misfiring of plugs can cause damage to the catalytic converter as well. It is recommended to regularly tune up the engine to avoid such problems.

 

What are the tools needed in replacing the Jeep Cherokee catalytic converter?

Replacing the catalytic converter in a Jeep Cherokee is the same as most automobile models. It requires raising the vehicle with the use of jack lifts and jack stands. Also, the bolts and screws would be removed and replaced with the use of a wrench set and screwdrivers. The difficulty of replacing the catalytic converter depends on whether the new one is a direct-fit or a universal catalytic converter.

 

What is the difference between a universal and a direct-fit catalytic converter?

Simply put the categorization of universal and direct-fit is based on the compatibility of the aftermarket catalytic converter with the vehicles. A direct-fit catalytic converter is especially designed for a particular make and model, making the installation easy. This is the kind of catalytic converter that a regular DYIer can install. The universal catalytic converter, on the other hand, can be installed on most makes and models. However, it requires cutting and welding to fit the Jeep Cherokee exhaust system and be installed properly.

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.