Skip the auto shop - Our mechanics make house calls

Q: Does my catalytic converter have a sensor?

asked by on

The other shop tested it snd said it failed the 15psi pressure test. Was wondering if I have you repair it do I need to replace or does it have a sensor on the catalytic converter?

My car has 135000 miles.
My car has an automatic transmission.

A: Hello, thanks for writing in. You do have a...

Hello, thanks for writing in. You do have a catalyst O2 sensor. The failure of the 15psi test is most likely the catalyst is clogged causing the excessive exhaust back pressure. The catalyst should be replaced if it exceeds the limits during the back pressure test. You may have to replace the O2 sensors if they are not reading the exhaust gases correctly. If you need assistance with this, consider YourMechanic, as one of our mobile technicians can come to your home or office to service your catalyst converter and oxygen sensors as necessary. Best of luck.

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: I can't turn my car alarm on.

If the system is an aftermarket device then it could be removed and all the wiring put back to its original connections. Most mechanics that are familiar with doing wiring should be able to do that for you. I recommend...

Q: Egr valve replacement, now my cooling fan wont go off

Hi There, The cooling fans in your car are operated by the use of a thermo cooling fan switch that monitors the engine temperature and triggers the cooling fans to come on at specific temperature levels. When this is not...

Q: I had my radiator replaced also my lower radiator holes replaced and my car keeps shaking really bad when the car is still

The shaking could be the result of a number of issues, including the engine having a misfire (not firing on all cylinders). The radiator replacement would not have created this condition. The vehicle should be inspected in order to diagnose...

Related articles

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...