Clock icon

Best Auto Repair, Louisville

Clock icon

Did Your Vehicle Fail the Smog Test?


Smog Test Repair

That's okay, you are in good hands at Duo Automotive. We will complete any needed repairs and reinspect your vehicle.

The 4 most common smog check repairs:

  1. Bad O2 Sensor Replacement
    If your oxygen sensor malfunctions it cannot properly monitor the exhaust and may cause overheating and loss of engine power and the release of toxic emissions. Duo Automotive in Louisville can help you replace your O2 sensor quickly and get you back on the road fast.
  2. Bad Fuel Metering Adjustment
    Proper air-fuel measurement prior to mixing is necessary for a smooth-running engine. Most drivers discover their vehicles has a fuel metering problem when the "Check Engine Light" is displayed. At Duo Automotive in Louisville we have state of the art computer programs that identify the exact check engine light diagnostic code and quickly complete the appropriate repairs.
  3. Rich Fuel Mixture Adjustment
    Come to Duo Automotive in Louisville to determine if your vehicle is putting out high levels of carbon monoxide due to a lack of oxygen in the combustion cycle. This can happen because of a faulty MAF sensor or oxygen sensor or because of leaking fuel injectors.
  4. Faulty EVAP System Part Replacement
    EVAP (Evaporative Emission Control System) problems occur when your vehicle is leaking gasoline vapors into the air. Duo Automotive in Louisville can repair troublesome leaks or cracks in your vehicle's vacuum hoses, seals or gas cap.
  5. Worried About the Cost of Smog Check Repairs?

    • Apply for Consumer Assistance, this is a program offering income-eligible consumers assistance toward emissions-related repairs at STAR test-and-repair stations if their vehicle fails its biennial Smog Check inspection.
    • Talk to the pro mechanics at Duo Automotive about starting a maintenance plan. Regular maintenance can reduce smog check failures and high-cost auto repairs in the future.
    • Discover More About Exhaust Repair Services At Duo Automotive in Louisville

      Machine Work
      Emissions And Smog Testing
      Discover more about Smog Check, Testing & Repair


what our customers say

Hands down best service I've had done in the city! They make sure to always check everything before giving my car back and if I have any issues they offer warranty! Owner is very professional! Service is always quick and fast.
B

I don't trust the dealership or hardly any company with my vehicle, but when I tell you I would take my car to DUO any day I mean it. The customer is always first with this company and they do amazing work no matter what the task is at hand. I strongly advice this company and cannot say enough good things about them. This goes for high end vehicles as well! Try Duo and you won't regret it.
S

Solid work in a timely manner. Replaced a clutch on my 350z with no problems at all. S/O Cesar highly recommend this shop!
C

I just got my brake pads done there today for a very nice and reasonable price. The owner does great work! So if you're having any car troubles, take your car down to his shop!
G

Does great work here, got my brakes done and my girls breaks done at a reasonable price and quick! Should definitely come here if your looking for someone who cares about their customers and the business.
N

Best mechanic in Louisville KY, great job on the rebuilt engine . Definitely will come back
J

  • ACDelco
  • BTB - CSC
  • jaxwax
  • Car Care Aware
TAP TO CALL NOW 502-365-1710 X