What does P1415 mean on a Chevy?

P1415. Secondary Air Injection System Bank 1. Applies to Corvette, Silverado, Sierra, Tahoe, TrailBlazer, Envoy.

What causes P1415 on a Chevy?

Failed secondary air injection check valve on Bank 1 letting exhaust back into the pump Seized AIR pump from moisture ingestion on C5 Corvette and early GMT800 trucks Carbon-clogged AIR ports in the exhaust manifold Ruptured AIR vacuum supply hose to the Bank 1 shutoff valve

How do I fix P1415 on a Chevy?

Command the AIR pump on with a Tech2/GDS2 scan tool and verify airflow at the Bank 1 hose Remove the Bank 1 check valve and blow through it both ways; it must pass air one way only Inspect the AIR pump for water intrusion before replacing valves Clear carbon from manifold AIR passages with the valves removed

Code

P1415

Secondary Air Injection System Bank 1

Category: Powertrain - Auxiliary Emissions Controls
Severity: Check Engine Light
Applies to: Corvette, Silverado, Sierra, Tahoe, TrailBlazer, Envoy
Related: No single generic twin. See OBD Codes List

What it means

P1415. Secondary Air Injection System Bank 1. This Chevy-enhanced code applies to Corvette, Silverado, Sierra, Tahoe, TrailBlazer, Envoy.

Findings, check these first

Failed secondary air injection check valve on Bank 1 letting exhaust back into the pump
Seized AIR pump from moisture ingestion on C5 Corvette and early GMT800 trucks
Carbon-clogged AIR ports in the exhaust manifold
Ruptured AIR vacuum supply hose to the Bank 1 shutoff valve

Standard procedure

Command the AIR pump on with a Tech2/GDS2 scan tool and verify airflow at the Bank 1 hose
Remove the Bank 1 check valve and blow through it both ways; it must pass air one way only
Inspect the AIR pump for water intrusion before replacing valves
Clear carbon from manifold AIR passages with the valves removed

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Sources and review

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Last updated 2026-09-13.

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