AutoCodes – Generic – P1416

P1416 Code - Port Air Circuit Malfunction/AIR System Bank 2

Quick Answer

A Secondary Air Injection (AIR) pump is used on this vehicle to lower tail pipe emissions on start-up. Common causes include Faulty Secondary Air Injection (AIR) pump, Secondary Air Injection check valve bank 2, Secondary Air Injection (AIR) pump electrical circuit fault. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P1416 indicates Port Air Circuit Malfunction/AIR System Bank 2.
Common causes: Common causes include Faulty Secondary Air Injection (AIR) pump, Secondary Air Injection check valve bank 2, Secondary Air Injection (AIR) pump electrical circuit fault.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 24,147

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 21, 2019

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P1416 Description

A Secondary Air Injection (AIR) pump is used on this vehicle to lower tail pipe emissions on start-up. The Powertrain Control Module (PCM) supplies a ground to the AIR pump relay, which energizes the AIR pump. The PCM monitors the HO2S voltages to diagnose the AIR system. During the AIR test, the PCM activates the AIR pump during closed loop operation. When the AIR is activated, the PCM monitors the HO2S voltages and short term fuel trim values for both banks of the engine. If the AIR system is operating properly, the HO2S voltages should go low and the short term fuel trim should go high.

OBDII Code P1416 - Port Air Circuit Malfunction/AIR System Bank 2 - AutoCodes.com — P1416 Code - Port Air Circuit Malfunction/AIR System Bank 2

What does this mean?

What are the Possible Causes of the DTC P1416?

Faulty Secondary Air Injection (AIR) pump
Secondary Air Injection check valve bank 2
Secondary Air Injection (AIR) pump electrical circuit fault
Blocked Secondary Air Injection (AIR) system

How to Fix the DTC P1416?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1416 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

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Information for Specific Makes

P1416 Acura — Air Pump Electric Current Sensor Circuit High Voltage
P1416 Buick — Secondary Air Injection System Bank 2
P1416 Cadillac — Secondary Air Injection System Bank 2
P1416 Chevrolet — Secondary Air Injection System Bank 2
P1416 Chrysler — Cylinder 6 Reactivation Control Performance
P1416 Dodge — Cylinder 6 Reactivation Control Performance
P1416 GMC — Secondary Air Injection System Bank 2
P1416 Honda — Air Pump Electric Current Sensor Circuit High Voltage
P1416 Jeep — Cylinder 6 Reactivation Control Performance

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.