Traditional gasoline car fault

P0420 and P0141 Diagnostic Issues on 2007 Honda Civic EX with VTEC Engine

I own a 2007 Honda Civic EX equipped with an inline-4, 1.8L VTEC engine. A few days ago, the Malfunction Indicator Lamp (MIL) illuminated. Using an OBD2 scanner, I detected two...

2007 Honda Civic EX | P0141

Smart Fortwo Coupe 450 (2004, Euro 4) - How to Fix Error Codes P2050 and P0420

Vehicle: Smart Fortwo Coupe 450 Year of manufacture: 2004 Engine type: Gasoline Engine power: 45 kW Engine displacement: 700 cm³ Emission category: Euro 4 Error codes detected: ...

Smart ForTwo | P0420

Saturn Astra P2096 and P0420 Diagnostic Codes: Causes and Solutions

The vehicle has been reported with diagnostic trouble codes P2096 and P0420. The only observed symptom is the engine stalling during idle after a brief period of operation. Thes...

Saturn Astra | P0420

Chevy Equinox 2013. Po011 and p0420 but then

Hello thus is my 1st post. I have a chevy equinox that is throwing po011 and po420 but when I go into limp mode then code po010 and po700 come up. I have changed the cam positio...

Chevy Equinox | P0420

2011 GMC Terrain Check Engine Light: U0109, P069E, and P0420 Codes - How to Fix & Clear for Registration

I own a 2011 GMC Terrain SLT with a persistent check engine light. I've spent over $900 on repairs without success, and I need the light to clear in order to register or sell th...

2011 GMC Terrain | P0420

2006 Ford Taurus P0174, P0420, P0171, P0316 Diagnosis and Repair Guide

My girlfriend's daughter drives a 2006 Ford Taurus with 86,000 miles. The vehicle is currently displaying active OBD2 diagnostic codes: P0174 (Rich mixture on bank 2), P0420 (Ca...

2006 Ford Taurus | P0171

Nissan Micra K11 1.0L Petrol 2001 - P0171 and P0420 Fault Codes Explained

Hi, I own a 2001 Nissan Micra K11 1.0L petrol engine, and I'm currently experiencing two diagnostic trouble codes: P0171 (Rich Fuel Mix in Bank 1) and P042-20 (Catalyst System ...

nissan micra k11 | P0171

P0420 Code in 2016 Chevrolet Cruze: Causes and Diagnosis After Replacement

I'm experiencing a recurring P0420 catalytic converter malfunction code on my 2016 Chevrolet Cruze. The check engine light first came on about a year ago. I took the car to a de...

2016 Chevy Cruze | P0420

2002 Chevrolet Tahoe OBD2 Codes P0420, P0200, P0740, P0785, P1860 - Troubleshooting Guide

After connecting my OBD2 scanner to my 2002 Chevrolet Tahoe, I received several diagnostic trouble codes: P0420 (Catalyst System Efficiency Below Threshold), P0200 (Fuel Injecti...

2002 chevrolet tahoe | P0200

2008 Mercedes GL450 Check Engine Light On: P0060, P0054, and P0420 Fault Codes Explained

Hello! I'm new to this forum and would really appreciate some help with the check engine light on my 2008 Mercedes GL45-0. The vehicle has 159,000 miles and recently came back u...

Mercedes | P0054

Toyota Camry 2003 P0420 Fault: Causes, Symptoms, and Solutions

My 2003 Toyota Camry is displaying a check engine light and has been diagnosed with fault code P042-20. The vehicle is also experiencing excessive fuel consumption. I'm seeking ...

Toyota Camry 2003 | P0420

2004 Toyota Camry P0420, P0441, P0-446 and P0455: What Parts Do I Need and How to Fix Them?

I'm experiencing OBD-II trouble codes P0420, P0441, P0446, and P0455 on my 2004 Toyota Camry 4-cylinder. I understand that a faulty downstream oxygen sensor (O2) is likely causi...

2004 Toyota Camry | P0420

2006 Toyota Tacoma 4.0L V6: P0306, P0420, P0430 Faults & Strange CAT Temperature Fluctuations That Resolve After Key Off/On Cycle

2006 Toyota Tacoma 4.0L V6 Engine Issue Vehicle: 2006 Toyota Tacoma 4.0L V6 Symptoms: - Cold start with multiple cylinder 6 misfires (occasional misfires in other cylinders) - ...

Bizarre CAT Temp readings | P0306

2008 Buick LaCrosse P0420 and P0025 Check Engine Light Issue - Cold Start Only

I own a 2008 Buick LaCrosse Super with recurring check engine light issues. After replacing both upstream and downstream oxygen sensors, the P0420 code (related to catalytic con...

Buick LaCrosse | P0025

2001 Honda CR-V P0420 and Cylinder Misfire Troubleshooting Guide

I own a 2001 Honda CR-V with 180,000 miles. The vehicle is showing OBDII error codes: P0420 (catalyst system efficiency below threshold), P0300 (random/multiple cylinder misfire...

Honda CRV | P0300

2010 Chevy Traverse P0420 code

I have a 2010 Chevy Traverse with approx. 150000 miles on it. About a month and a half ago I replaced the bank 1 converter and the O2 sensors. I got a PO420 code. Cleared the co...

2010 Chevy Traverse | P0420

Dodge Caliber 2007 P0420 Fault: Catalytic Converter and Oxygen Sensor Location & Diagnosis

I'm looking for information on the location of the catalytic converter and its associated oxygen sensors in a 2007 Dodge Caliber. Specifically, where is the catalytic converter ...

Dodge Caliber | P0420