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2002 GMC Sierra 2500 HD
2002 GMC Sierra 2500 HD Catalytic Converters
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Part Number: M66447209
Guaranteed to Fit
$390.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 2Gmxa06.0188; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SL 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 2Gmxa08.1201; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 2Gmxa08.1201; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD Base 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 2Gmxa08.1201; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 2Gmxa06.0188; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 2Gmxa06.0188; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 2Gmxa06.0188; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 2Gmxa08.1201; Cutting And Welding Required
Product Details
Location : Rear, Driver or Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 3 in. Inlet/Outlet; 13 in. overall lengthType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-103Gasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: M6621989
Guaranteed to Fit
$336.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SL 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD Base 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.0L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L 153.0 in. Wheelbase
Product Details
Location : 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 : (1) Converter Quantity; 3 in. Main Piping Diameter; 8.75 in. Body Length x 5 in. Body Width x 5 in. Body Height; 3 in. ID x 3 in. OD; Round Body Shape; Spun Body Type; Bolt-On Inlet Attachment; Clamp-On Outlet Attachment; Stainless Steel Material; Post Converter; Includes Gasket; 23.25 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 : 5-year or 50,000-mile Magnaflow limited warranty on Construction; 25,000-mile Magnaflow limited warranty on EmissionsProp 65 Warning :
WARNING: 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.
Part Number: M6699009HM
Guaranteed to Fit
$222.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD Base 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SL 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
Product Details
Location : Driver or 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 : 3 in. Inlet/Outlet; 16 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 : Magnaflow 5 year / 50,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: M6699209HM
Guaranteed to Fit
$178.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 8.1L 153.0 in. Wheelbase, Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.0L Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L Cutting And Welding Required
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L Cutting And Welding Required
- 2002 GMC Sierra 2500 HD Base 8 Cyl 8.1L 153.0 in. Wheelbase, Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 8.1L 153.0 in. Wheelbase, Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SL 8 Cyl 8.1L 153.0 in. Wheelbase, Cutting And Welding Required
Product Details
Location : Front or 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 : 3 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 : Magnaflow 25,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: M6651209
Guaranteed to Fit
$194.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 8.1L 153.0 in. Wheelbase, Cutting And Welding Required
- 2002 GMC Sierra 2500 HD Base 8 Cyl 8.1L 153.0 in. Wheelbase, Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 8.1L 153.0 in. Wheelbase, Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SL 8 Cyl 8.1L 153.0 in. Wheelbase, Cutting And Welding Required
Product Details
Location : Front or 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 : 3 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 : Magnaflow 25,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: M6699206HM
Guaranteed to Fit
$178.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.0L Cutting and Welding Required During Installation
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L Cutting and Welding Required During Installation
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L Cutting and Welding Required During Installation
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L Cutting and Welding Required During Installation
Product Details
Location : Front or 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 : 2.25 in. Inlet/2.5 in. OutletProduct Fit : Semi-Universal (Welding Required)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :
WARNING: 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.
Part Number: M6651009
Guaranteed to Fit
$231.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD Base 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SL 8 Cyl 8.1L 153.0 in. Wheelbase
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.0L
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L
Product Details
Location : Driver or 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 : 3 in. Inlet/Outlet; 16 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 : Magnaflow 5 year / 50,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: M6651659
Guaranteed to Fit
$281.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L California Emissions Equipped Vehicles Registered Outside Of California; Low Emissions Vehicles (LEV)
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L California Emissions Equipped Vehicles Registered Outside Of California; Low Emissions Vehicles (LEV)
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.0L California Emissions Equipped Vehicles Registered Outside Of California; Low Emissions Vehicles (LEV)
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L California Emissions Equipped Vehicles Registered Outside Of California; Low Emissions Vehicles (LEV)
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 : 3 in. Inlet/OutletProduct Fit : Semi-Universal (Welding Required)Recommended Use : Performance ReplacementQuantity Sold : Sold individuallyGasket Included : Without GasketOxygen Sensor Ports : Factory OEM PortsOxygen Sensor Port Location : Factory OEM LocationsWarranty : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :
WARNING: 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.
Part Number: M6652493
Guaranteed to Fit
$447.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L Low Emission Vehicle (Lev)
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.0L Low Emission Vehicle (Lev)
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L Low Emission Vehicle (Lev)
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L Low Emission Vehicle (Lev)
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 : (1) Converter Quantity; 3 in. Main Piping Diameter; 9 in. Body Length x 4 in. Body Width x 4 in. Body Height; 3 in. ID x 3 in. OD; Round Body Shape; Spun Body Type; Bolt-On Inlet and Outlet Attachment; Stainless Steel Material; Pre Converter; Includes Clamp, Hangers and Gasket; 49.38 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 : 5-year or 50,000-mile Magnaflow limited warranty on Construction; 25,000-mile Magnaflow limited warranty on EmissionsProp 65 Warning :
WARNING: 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.
Part Number: M6660121
Guaranteed to Fit
$506.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.6L
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.6L
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.6L
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.6L
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : Round body; 12 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 : Magnaflow 5 year / 50,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: M6660120
Guaranteed to Fit
$506.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.6L DIESEL, With Duramax Engine
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.6L DIESEL, With Duramax Engine
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.6L DIESEL, With Duramax Engine
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.6L DIESEL, With Duramax Engine
Product Details
Emissions : Federal EPA Standard, 46-State Legal (Cannot ship to or be installed in vehicles originally purchased in CA, CO, NY or ME)Notes : 3.5 in. Inlet/Outlet; 12 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 : Magnaflow 25,000 Mile Limited WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: M6693479
Guaranteed to Fit
$517.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L 133.0 in. Wheelbase, With 3 in. Diameter Outlet
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L 133.0 in. Wheelbase, With 3 in. Diameter Outlet
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L 133.0 in. Wheelbase, With 3 in. Diameter Outlet
Product Details
Location : 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 : Gaskets Included; 49 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 : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :
WARNING: 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.
Part Number: M66447109
Guaranteed to Fit
$523.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 2Gmxa06.0188; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SL 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 2Gmxa08.1201; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 2Gmxa08.1201; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD Base 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 2Gmxa08.1201; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 2Gmxa06.0188; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 2Gmxa06.0188; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L EO# D-193-103; Eng Fam No: 2Gmxa06.0188; Cutting And Welding Required
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 8.1L EO# D-193-103; Eng Fam No: 2Gmxa08.1201; Cutting And Welding Required
Product Details
Location : Front, Driver or Passenger SideEmissions : CARB and Federal EPA Standards, 50-state LegalNotes : 3 in. Inlet/Outlet; 13 in. overall lengthType : Catalytic ConverterProduct Fit : Semi-Universal (Welding Required)Recommended Use : OE ReplacementQuantity Sold : Sold individuallyEO Number : D-193-103Gasket Included : Without GasketWarranty : Magnaflow 5 year / 50,000 Mile WarrantyReturns Policy : NON-RETURNABLEProp 65 Warning :
WARNING: 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.
Part Number: M6649642
Guaranteed to Fit
$543.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L 133.0 in. Wheelbase, With 3 in. Diameter Outlet
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L 133.0 in. Wheelbase, With 3 in. Diameter Outlet
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L 133.0 in. Wheelbase, With 3 in. Diameter Outlet
Product Details
Location : 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 : Gaskets Included; 79 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 : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :
WARNING: 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.
Part Number: M6693622
Guaranteed to Fit
$546.00
Vehicle Fitment
- 2002 GMC Sierra 2500 HD Base 8 Cyl 6.0L Replaces Front Pre-Converter And Rear Main Converter
- 2002 GMC Sierra 2500 HD SLT 8 Cyl 6.0L Replaces Front Pre-Converter And Rear Main Converter
- 2002 GMC Sierra 2500 HD SLE 8 Cyl 6.0L Replaces Front Pre-Converter And Rear Main Converter
- 2002 GMC Sierra 2500 HD SL 8 Cyl 6.0L Replaces Front Pre-Converter And Rear Main Converter
Product Details
Location : 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 : Gaskets Included; 50.5 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 : Magnaflow 25,000 Mile Limited WarrantyProp 65 Warning :
WARNING: 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.
Page 1 of 5 | Showing 1 - 15 of 61 results
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Helpful Automotive Resources
P0430 Code: Catalyst System Efficiency Below Threshold (Bank 2)In most cases, a vehicle with an inefficient catalytic converter will continue to run just fine. But if the converter is obstructed internally, it can cause poor engine performance and may even damage the engine in the long run.
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.
Can You Drive Without a Catalytic Converter?Technically, yes. Older cars ran just fine before catalytic converters became commonplace in the 1970s. So, if your question is whether your car will run without one, then it most certainly will. But the other question you should be asking is—should you risk it?
Removing or disabling the catalytic converter could
P0316 Code: Engine Misfire Detected on Startup (First 1000 Revolutions)The PCM may disable the misfiring cylinder or cylinders in order to prevent further damage to the engine. Code P0316 is often listed in addition to one or more of the P0300 series codes that are associated with the misfiring cylinder/s.
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.
How to Tell If the Catalytic Converter is CloggedA clogged catalytic converter will present symptoms, while a chemically failed cat con that’s not clogged typically just illuminates the check engine light or malfunction indicator lamp (MIL). Also, if the cat con that just fails chemically but doesn’t clog is not the light-off cat con (the cat con closest