Frequently Asked Questions Ask APW
Are all Toyota Corolla catalytic converters legal?
Answer: Many catalytic converters are not legal for use in California and any of at least 12 other states that have adopted California's emissions standards. A safe choice is a converter that meets the standards of the California Air Resources Board since such a device would be legal anywhere in the United States.
How much would it cost to get a new catalytic converter for a Toyota Corolla?
Answer: Depending on factors such as design, quantity of the component, number of oxygen sensors, and whether it's legal in California or not, the price can range from as low as $50 to around $1000. Labor cost for installation can be anywhere from $60 to over $250.
What are some common issues with a Toyota Corolla's catalytic converter?
Answer: The most common cause for catalytic converter failure is damage from overheating. This often happens when the engine burns an inadequate amount of fuel relative to the air it takes in, causing a large increase in temperature that affects the converter. This problem can be alleviated by acquiring and maintaining good oxygen sensors. Another problem is the presence of contaminants like lead, fuel sulfur, manganese, and silicone. These clog the converter's matrix, covering the catalysts in such a way as to render the component useless. This is caused by using any fuel that isn't unleaded and by leaks in the engine. Yet another concern is the converter's risk of getting stolen. The converter's catalysts, platinum, rhodium, etc., are precious metals, making the device prone to theft. Care must be taken never to leave the vehicle in unsecure areas. A cage clamp can be installed to make the Toyota Corolla's catalytic converter very difficult to remove. A vibration-sensitive alarm system is also a good deterrent.
What are the signs that a catalytic converter on a Toyota Corolla has gone bad?
Answer: The first sign of a faulty Toyota Corolla catalytic converter is usually a frequent "check engine" light coming on. Observable signs include black exhaust fumes, a rattling sound, and detection of a foul odor (similar to the smell of rotten eggs). Performance issues may also be felt such as frequent stalling when idling, difficulty accelerating, much higher engine temperatures, and lower gas mileage.