Emissions System Services

What Is an Emissions System?

The emissions system works to reduce the harmful pollutants that are the by-products of your engine’s combustion process. Your car is equipped with a series of sensors that measure everything from the temperature of the air coming into the engine, to the percentage of unburned fuel in the exhaust. Those sensors feed that data to the car’s computer, which continually makes adjustments to the fuel mixture in an effort to produce less pollution from the engine. Most notably is the oxygen sensor (or O2 sensor), which measures the percentage of oxygen in the exhaust to tell the computer whether or not to send a higher or lower volume of fuel into the engine.

From time to time, these sensors may malfunction, and on rare occasions, the computer itself will fail, needing replacement.

The oxygen sensor in the exhaust pipe for figuring out the ingredients in the engine system.
The oxygen sensor in the exhaust pipe for figuring out the ingredients in the engine system.

The emissions system also includes a mechanism for capturing fuel vapors so they do not enter the atmosphere. This system contains a series of vacuum hoses as well as a charcoal canister, which can both require service from time to time.

Kneble’s Auto Service Center can perform the following emissions system services:

  • Emissions System Repair (if your car failed an emissions test)
  • Oxygen Sensor Diagnosis and Replacement
  • Air Injection System Diagnosis and Repair
  • Evaporative Emission Control System Diagnosis and Repair
  • Carbon Canister Replacement
  • Fuel Cap Replacement

Ready to Make An Appointment For Your Emissions System Service?

At Kneble’s Auto Service Center we always want to make the process of getting your car serviced as convenient as possible. To ensure that we can get your car serviced in a timely manner, we ask that you make an appointment for your emission system service.

We are able to accommodate those who desire to wait for their service as we feature a comfortable waiting area complete with TV, complimentary refreshments, a library, a desk, and a charging station. And yes, we even have free Wi-Fi!

In some cases, we may determine that the car needs to stay overnight either due to the time required for service or the unavailability of parts.

If you need service and have not made an appointment you can always feel free to call us at (609) 625-3286 to get on the schedule.

Please note that we offer a shuttle service within a 10 miles radius of the shop (Egg Harbor City, Mizpah, Estell Manor, Dorothy, and surrounding areas).

Frequently Asked Questions About Emissions Systems:

Why Did My Car Fail Its Emissions Test?

There are a number of reasons your car could have failed an emissions test, but ultimately, something is not working properly thereby causing your car to produce more pollutants than normal. Our team can help diagnose this problem, however, it requires a visual inspection as well as an analysis of the computer data.

Does My Oxygen Sensor Need to Be Replaced Periodically?

Yes. As a rule of thumb, it should be replaced at 60,000 miles for cars older than 1996 and at 100,000 miles for cars 1996 and newer.

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Emissions Systems Knowledge Base

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