Skip the auto shop - Our mechanics make house calls

Q: PO412 code on a 2002 4-cylinder Camry

asked by on

2002 Camry 4-cylinder. PO412 code. People say there are two catalytic converters on this car and that's the upper one. Under the hood problem caused the code---is that right?

Unfortunately, on this model, it often is. The catalytic converters are built into the exhaust manifold. They cost a whole lot of money at a Toyota dealer but you can get good aftermarket ones from good companies like Walter. There are very good, guaranteed catalytic converter exhaust manifold units out there, and you can buy them a lot cheaper than when buying a dealer unit. If you need help, I would have a professional scan your vehicle for codes and data so that they can diagnose the issue and replace your catalytic converter if needed.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Leak from Manifold

You are correct. The most likely cause of an intake manifold leak, is gasket failure. These gaskets fail for a number of reasons and can be swapped out in a day. The majority of the process is removing the manifold...

Q: Sulfur smell while flooring 2011 V6 Mitsubishi Outlander

First thing--start buying your gas somewhere else. Sulfur is created by sulfur burning in the gas and you are getting bad gas that has sulfur in it. That's the only thing. The only other thing that can make sulfur...

Q: Radiator leak

The radiator in your car is most likely leaking from one of the plastic tanks and not the aluminum core part of the radiator. The tanks on these radiators are not repairable and the radiator will most likely need to...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
What Causes Hoses to Leak?
While the largest part of your engine is mechanical, hydraulics plays a significant role. You’ll find fluids at work in a number of different areas. Your car's fluids include: Engine oil Transmission...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...