MazicBay Diagnostics
MAZICBAYDiagnostics
FTC Reader Disclosure: When you purchase or register through links on our site, we may earn an affiliate commission at no extra cost to you. Read our Editorial & Advertising Policy.

P0492 on Ford Bronco

Secondary Air Injection System Insufficient Flow (Bank 2)

Factory diagnostic protocol and troubleshooting wire for fault code P0492 specifically for the Ford Bronco (2021–2026, 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)).

Verified OEM Telemetry & Field Repair Tree
Ford Bronco2021–2026
Ford Bronco
SUV2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)
Reliability
Sensor Voltage Ref
0.1V – 5.0V Ref
Bronco SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Low urgency level
Est. Repair Cost
$180 - $850
Parts & Labor DIY
Check P0492 On Another Ford Model:
Diagnose P0492 on Specific Bronco Model Year:

1. Symptoms of P0492 on Ford Bronco

When the Engine Control Module (ECM/PCM) on your Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)) logs fault code P0492, drivers commonly observe:

Check Engine Light on on Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP))
Failed emissions test on Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP))
Ford Bronco OBD-II Port Location
The 16-pin diagnostic connector is located Beneath steering wheel lower shroud. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Ford Bronco

Historical warranty claims and technical repair bulletins for Ford Bronco point to the following failure distribution:

55%
Clogged Bank 2 air injection passages (Ford OEM Part)
25%
Faulty Bank 2 combi valve (Ford OEM Part)
12%
Weak air pump (Ford OEM Part)
* Source: Synthesized from NHTSA ODI field repair telemetry and verified OEM Technical Service Bulletin (TSB) repair tree frequency percentiles for Ford Bronco.

3. Step-by-Step DIY Repair Guide for Ford Bronco

01
Scan and Record Freeze Frame Telemetry

Connect an OBD-II scan tool and record freeze frame sensor telemetry for code P0492 to note engine RPM, load, and voltage when the fault triggered. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Required Tool: OBD-II Scanner
02
Inspect Related Wiring Harness & Connectors

Inspect the electrical connector and wiring harness related to P0492 for chafing, corrosion, moisture, or pin push-out. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Required Tool: Flashlight, Multimeter
03
Test Component Resistance & Voltage Supply

Measure circuit voltage supply (12V B+ or 5V reference) and sensor/actuator resistance according to factory repair manual specifications. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Required Tool: Digital Multimeter
04
Replace Defective Component

Install a new OEM-grade replacement part, torque fasteners to factory spec, and ensure electrical locking tabs click firmly. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Required Tool: Hand Tool Socket Set, Torque Wrench
05
Clear Trouble Codes & Complete Drive Cycle

Clear all stored DTCs from vehicle memory and perform an OBD-II drive cycle to confirm the diagnostic monitor resets to 'Ready'. on the Ford Bronco equipped with 2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP).

Required Tool: OBD-II Scanner
Recommended Parts & Testing Tools

Equipment for Diagnosing Ford Bronco (P0492)

Prime Fast Delivery & Verified Fitment
Direct-Fit Replacement Part

Ford Bronco OEM Replacement Sensor

4.7 / 5.0 (Verified Fit)

Direct-fit replacement assembly engineered to OEM tolerances for Ford Bronco.

$45 – $95 Prime
Check Fitment on Amazon
Sensor Signal Voltage Meter

AstroAI Auto-Ranging Digital Multimeter

4.6 / 5.0 (Best Seller)

Essential for testing 0.1V–5.0V sensor reference signals, ground continuity (<0.20Ω), and harness resistance.

$29.99 Prime
View on Amazon
Top Mobile OBD-II Scanner

BlueDriver Bluetooth Pro OBDII Scan Tool

4.7 / 5.0 (50,000+ Reviews)

Reads and clears enhanced codes (ABS, Airbag, Transmission, Engine) & live freeze-frame telemetry on phone.

Compare OEM & Aftermarket Replacement Sensors for Ford BroncoVerified direct-fit pricing from Denso, Bosch, Motorcraft, and ACDelco on Amazon.
Find Parts on Amazon
* As an Amazon Associate, MazicBay earns from qualifying purchases. Prices & availability subject to change.

Other Common Fault Codes on Ford Bronco

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Ford Bronco:

4. Ford Bronco P0492 FAQs

What causes code P0492 to trigger on a Ford Bronco?

On the Ford Bronco (2.3L EcoBoost (300HP) / 2.7L Twin-Turbo V6 (330HP) / 3.0L Raptor (418HP)), P0492 is most frequently caused by Clogged Bank 2 air injection passages or Faulty Bank 2 combi valve.

Where is the OBD-II port located on my Ford Bronco?

On the Ford Bronco, the 16-pin DLC diagnostic connector is located Beneath steering wheel lower shroud. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Ford Bronco with code P0492?

Yes. Bank 2 secondary air flow low. Given that P0492 carries a Low severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.