Test Secondary Air Injection Check Valve
Emissions System
Verification that the one-way valve in the secondary air injection system (which adds air to the exhaust to reduce emissions) is opening and closing properly. A stuck or leaking valve causes the engine to misfire or fail an emissions test.
Estimated Cost
$80–$200🔒
Parts + labor, based on the parts this service typically requires. Not specific to your vehicle or region — this spans all vehicles, all regions, and all part grades, so treat it as a rough ballpark rather than a quote.