Traditional gasoline car fault
Search fault code and browse forum case posts.
1996 Chevrolet Impala SS P0410 and P0420 Codes: Causes, Diagnosis, and Repair Cost
I have a 1996 Chevrolet Impala SS with approximately 116,000 miles. The vehicle is currently displaying diagnostic trouble codes P0410 and P0420. Are these two codes related? Co...
1996 chevrolet impala ss | P0410P0420 Diagnostic and Repair for 2001 Chevrolet S10 2WD with Starting Issues and Brake Light Problems
I own a 2001 Chevrolet S10 2WD with a 2.2L engine. The check engine light has been on for approximately one year, and the fault code displayed is P0420. About 8 out of 10 times ...
2001 S10 | P04202001 Chevy Suburban P0174 P0300 P0420 Codes: Causes, Fixes & Diagnosis Guide
Hello, I own a 2001 Chevrolet Suburban with the Check Engine Light illuminated. After taking it to AutoZone, I received five diagnostic codes: two P0174 codes (Bank 1 and Bank 2...
2001 Chevy Suburban | P0174P0420 Diagnostic: 2001 Nissan Sentra GXE 1.8L Manual Transmission - Cat Converter or Sensor Issue?
I'm currently troubleshooting a 2001 Nissan Sentra GXE 1.8L manual transmission vehicle that recently triggered a P0420 diagnostic code. The owner mistakenly paid $400 to an unq...
2001 Nissan Sentra GXE 1.8 Manual | P04202001 Oldsmobile Aurora P0420 Check Engine Light Returning After Converter Replacement
My 2001 Oldsmobile Aurora V8 (79,000 miles, automatic transmission) recently developed a check engine light. I replaced the catalytic converter (universal brand), cleaned the fu...
2001 OldsMobile Aurora | P04202002 Chevy Camaro V6 with Codes PO420, PO141, and P0810 - What Do These Mean and How to Fix Them for Inspection?
I own a 2002 Chevrolet Camaro with a 61,000-mile V6 engine and automatic transmission. The car has recently triggered three diagnostic trouble codes: PO420, PO14
Camaro | P01412002 Chevy Camaro with P0420, P0141, and P0810 Codes: What Does This Mean and How to Fix It for Inspection?
I own a 2002 Chevrolet Camaro with a V6 engine and automatic transmission. The vehicle has accumulated 61,000 miles and recently triggered the following OBD-II diagnostic codes:...
2002 Camaro | P01412001 Nissan Frontier 2.4L 5-Speed: P0420 Code Persistence and Pinging Issues - Diagnosis and Fixes
I've been experiencing the P0420 diagnostic trouble code on my 2001 Nissan Frontier with a 2.4L engine and 5-speed transmission for approximately four years. Recently, I replace...
2001 nissan frontier | P0420P0420 Fault Resolution on 2001 Toyota Corolla CE: Aftermarket Converter Works Without OEM Cost
A Toyota dealer may recommend spending over $1,000 on an original equipment manufacturer (OEM) catalytic converter to fix a P0420 fault on a 2001 Toyota Corolla CE. However, thi...
2001 Corolla CE | P04202000 Honda Civic EX - P0420 Code Locked-In
I've got a P420 code locked in on my car w/101,000 miles. Recently, my distributor dies and was replaced. I also replaced the spark plugs and wires (way overdue). The code poppe...
2000 Honda Civic EX | P04201999 Mazda Protege ES P0171 and P0420: How to Fix Lean Condition Before Replacing Converter
I own a 1999 Mazda Protege ES with a 1.8L engine, automatic transmission, and approximately 156,000 miles. When I first purchased the vehicle, it displayed a P0171 code (System ...
1999 mazda protege es | P0171P0101 P0107 P0430 P0420 Diagnosis and Fixes for 1996 Chevrolet Camaro LT1 with 6-Speed Transmission
I recently installed a new LT1 engine in my 1996 Chevrolet Camaro with a 6-speed transmission, but I'm consistently receiving the following OBD-II diagnostic codes: P0101, P0107...
1996 Camaro | P01012000 Chevy Prizm P0420 Code: Causes, Symptoms & Cost-Effective Diagnosis Guide
Hi everyone! I've been experiencing a recurring check engine light with code P0420 on my 2000 Chevrolet Prizm, which has now reached approximately 95,000 miles. This issue firs...
2000 Chevy Prizm | P04201999 Mazda Miata P0420 code
A year ago my 1999 Mazda Miata 1.8L had a catastrophic catalytic converter failure. The dealer replaced the converter but I ran out of $$$ before getting the damaged O2 sensor r...
1999 Mazda Miata | P04202003 Toyota Corolla P0420 Code: Causes, Fixes & TSB Solutions (Aftermarket Converter Failures)
My 2003 Toyota Corolla has reached 140,000 miles and is equipped with a manual transmission. About two and a half years ago, the check engine light came on. I took it to a Toyot...
2003 Corolla | P04202001 Honda Civic LX 4DR P0420 Code Not Clearing After Catalytic Converter and O2 Sensor Replacement
I own a 2001 Honda Civic LX 4-door automatic model. Recently, I received the P042-0 diagnostic trouble code (DTC), indicating a catalytic converter efficiency problem. I had bot...
2001 Honda Civic | P0420