Exhaust, Emissions & Performance

Michigan may not require annual emissions testing, but keeping your vehicle’s emissions system in proper working order is still essential for performance, fuel economy, and environmental health. At The Garage MKG in Muskegon, our ASE-certified technicians perform professional emissions diagnostics and repair to ensure your vehicle meets federal emissions standards and is ready for inspection in any state. From check engine lights to failed readiness monitors, we’ll help you identify and correct any emissions-related concern.

We use factory-grade scan tools, smoke machines, and data monitoring to evaluate your vehicle’s emissions systems in real time. Our process includes:

Reading and interpreting diagnostic trouble codes (DTCs)
Testing O2 sensors, air-fuel ratios, and catalytic converter performance
Checking EVAP system integrity and purge flow
Verifying readiness monitors for inspection compatibility

This allows us to locate faults precisely — and repair what’s needed without unnecessary parts replacement.

A healthy emissions system improves not just the environment but your wallet. Properly functioning systems increase fuel economy, reduce carbon buildup, and help your vehicle run smoother.

Our technicians can replace or repair failing sensors, vacuum lines, and valves, and confirm the fix by clearing codes and ensuring all monitors reset correctly — leaving your vehicle compliant and efficient.

If your check engine light is on or you’re preparing to register your vehicle in another state, schedule emissions diagnostics with The Garage MKG today. Call (231) 246-7735, visit us at 1860 Henry St, Muskegon, MI, or book online anytime.

We’ll verify that your emissions system is working properly, explain any fault codes clearly, and help you keep your vehicle performing cleanly and efficiently — no unnecessary testing, no confusion, just trusted expertise.