Posts Tagged: bad catalytic converter
How to Diagnose a Bad Catalytic Converter the Right Way
How to Diagnose a Bad Catalytic Converter: What Experienced Mechanics Actually Look For Quick Summary There are no wear parts inside a Catalytic Converter, so they don’t die on their own; they’re murdered. If they’re fed too much fuel, oil, or coolant, they can overheat and melt. Misfires, internal leaks, cold-water shock, and impacts are the most common causes of catalytic converter failure. In other words, a bad catalytic converter isn’t the cause; it’s the result of another problem. When diagnosing a bad catalytic converter, I never rely on a … Read More
Toyota Scion P0420
Fix code P0420 Toyota Scion If you own a 4-cylinder Toyota or Scion vehicle and get a check engine light with trouble code P0420, welcome to the club. This has been a persistent problem with these vehicles. To get right to the point, the problem is bad software. Toyota has updated it. But that’s not all. If you don’t maintain this vehicle EXACTLY as Toyota says, you can accelerate this problem. It all starts with misfires and not changing your oil. Misfires send unburned fuel down into the catalytic converter where it’s … Read More