What causes P1416 on a Honda?

Short to power in the current sensor wiring Failing air pump drawing excess current Water ingestion seizing the pump motor Shorted current sensor internally Faulty ECM current sensing circuit

How do I fix P1416 on a Honda?

Confirm the code on a cold start with an HDS scan tool Inspect pump wiring for chafing and shorts to power Measure actual pump current draw and compare to spec Check the pump inlet for water intrusion and clear the drain path Replace the pump or sensor as indicated, then verify on a cold start

P1416 Secondary Air Injection (AIR) Pump Current Sensor - Circuit High

Q: What does P1416 mean on a Honda?

P1416. Secondary Air Injection (AIR) Pump Current Sensor - Circuit High. Applies to S2000.

Category: Powertrain - Auxiliary Emissions Controls
Severity: Check Engine Light
Applies to: S2000

What does P1416 mean on a Honda?

P1416. Secondary Air Injection (AIR) Pump Current Sensor - Circuit High. This Honda-enhanced code applies to S2000.

Common causes of P1416

Short to power in the current sensor wiring
Failing air pump drawing excess current
Water ingestion seizing the pump motor
Shorted current sensor internally
Faulty ECM current sensing circuit

How to fix P1416

Confirm the code on a cold start with an HDS scan tool
Inspect pump wiring for chafing and shorts to power
Measure actual pump current draw and compare to spec
Check the pump inlet for water intrusion and clear the drain path
Replace the pump or sensor as indicated, then verify on a cold start

Sources and review

Last updated 2026-09-07.