
Emissions Repairs Service
We Fix What's Causing Your Emissions Failure
If your vehicle failed a Wisconsin emissions inspection, you need it repaired before you can renew your registration. At Double Decker Auto Repair we diagnose and repair the problems that cause emissions failures, accurately, efficiently, and at a fair price.
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Wisconsin's OBD (On-Board Diagnostic) emissions test checks your vehicle's onboard computer for active fault codes related to the emissions system. A check engine light, a faulty oxygen sensor, a failing catalytic converter, an EVAP system leak, or issues with your EGR valve are among the most common causes of failure. Our technicians have extensive experience with all of these systems across all makes and models.
Emissions Repairs We Perform
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OBD-II Diagnostic Scan & Fault Code Analysis
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Check Engine Light Diagnosis & Repair
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Oxygen Sensor Replacement
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Catalytic Converter Repair & Replacement
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Evaporative Emission (EVAP) System Repair
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Gas Cap Replacement
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EGR Valve Cleaning & Replacement
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Exhaust System Leak Repair
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Fuel System Repairs Affecting Emissions
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Smoke Test & EVAP Leak Detection
About Wisconsin's Emissions Testing Program
Kenosha County participates in Wisconsin's vehicle emissions inspection program. Most gasoline-powered vehicles from model year 1996 and newer are subject to OBD testing. If your check engine light is illuminated, your vehicle will not pass the test. After a repair, your vehicle's onboard monitors need to complete a set number of drive cycles before they're ready for re-testing, our team can advise you on readiness before you return to the testing station.
Emissions Repairs – FAQ
What causes an emissions test failure?
Common causes include faulty sensors or a bad catalytic converter.
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Can I still drive if I fail emissions?
Usually yes, but repairs are needed to pass inspection.
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Will the check engine light affect emissions?
Yes, it often indicates an emissions-related issue.