Q: i am buying a catless downpipe for my cadillac ats 2.o t awd. will this set off any check engine lights

asked by on

Purchasing a zzp catless downpipe and was curious if that would set a check engine light

My car has 73000 miles.
My car has an automatic transmission.

If you remove the catalytic converter, the check engine light will turn on and it will turn on even if you retain the downstream oxygen sensor that is on your car. Under almost all circumstances, Federal EPA requirements do not permit removal of the converter, even if the claimed use is "off road". Of course, consult with the appropriate agency in your locale to obtain full details.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. i am buying a catless downpipe for my cadillac ats 2.o t awd. will this set off any check engine lights

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: Tire noise, harsh ride

Unfortunately, yes, this is normal for "run-flat" tires. In order to be able to run flat, they have very stiff sidewalls to support the vehicle when there is low/no air pressure in the tire. Check out major tire outlets (like...

Q: Stabilitrak warning light

Hi There, It sounds like you may potentially have two separate issues going on here. The stabilitrak system is your car's traction control system as you may know. This will generally not cause the car to shut down completely, however...

Q: Front Tires getting hot & theres a burnt smell

Hello. Most of the time if you have a caliper or two that are hanging up it is because of a bad master cylinder. The seals in the master cylinder bind and keep the master cylinder from releasing. Most of...

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...
P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.