Inspect Secondary Air Injection Relay
Emissions System
A check of the relay that controls the secondary air injection pump, which adds extra air to the exhaust during engine startup for emissions control. A bad relay prevents the system from operating, leading to emissions test failure and reduced converter e
Estimated Cost
$50–$150🔒
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.