Q: My car is missing the o2 sensor & I need to pass smog test my car is straight piped and is missing the catalytic converter.

asked by on

So my car has an after market exhaust and it's missing the o2 sensor and catalytic converter causing the check engine light to be on how will I be able to get around this so that I can pass the smog test

My car has 135000 miles.
My car has a manual transmission.

Unfortunately, you will not be able to get the vehicle to pass smog without replacing the oxygen sensor and the catalytic converter. Depending on your state’s smog requirements, most will perform a visual inspection (which you will fail due to not having the proper components), which consists of inspecting to be sure all of the proper emissions components are physically on the car. Secondly, they will perform an emissions test that will read the exhaust gases. In your case, without the catalytic converter, it is quite likely the car will also fail this test as well due to the excessive amounts of fuel that will be present in the exhaust.

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. My car is missing the o2 sensor & I need to pass smog test my car is straight piped and is missing the catalytic converter.

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: Can someone come to my house and run a diagnostic on my truck? It won’t start in damp or rainy weather

No starts in damp weather are sometimes traced to ignition system faults. However, sometimes there are multiple factors that in combination will cause these no starts. For example, you could also have partially plugged fuel injectors or perhaps cold enrichment...

Q: Why would my clutch pedal be stuck on the floor in my 1999 Honda Civic

Hello. The most common cause of a clutch pedal not returning to its upright position is a bad clutch master cylinder. When it fails internally it will no longer hold pressure which keeps it from returning up. It can also...

Q: P0740 - Torque converter clutch malfunction.

Hi there. The torque converter clutch code has came on for the input shaft sensor has picked up a different speed when the engine is running. The clutch is slipping in and out of lock. Check the transmission fluid and...

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...
How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...