Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSMAZDA20086 S SPORT, 4D HATCHBACK, STANDARDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 233 (SYMPTOM TROUBLESHOOTING [ENGINE CONTROL SYSTEM 13B-MSP))ENGINE CONTROL SYSTEM OPERATION INSPECTIONSECONDARY AIR INJECTION (AIR) SYSTEM INSPECTION
2008 Mazda 6 s Sport, 4D Hatchback, Standard
Secondary Air Injection (AIR) System Inspection
2008 Mazda 6 s Sport, 4D Hatchback, StandardSECTION Secondary Air Injection (AIR) System Inspection
WARNING: This page is about a different car, the 2004 Mazda RX-8. However, it is still accessible from the selected car via links, so may be relevant.
- Connect the WDS or equivalent to the DLC-2.
- Verify that DTC P2257, P2258, P2259 or P2260 is not displayed.
- If DTC P2257, P2258, P2259 or P2260 are displayed, perform DTC inspection.
(See DTC TABLES .)
- If DTC P2257, P2258, P2259 or P2260 are displayed, perform DTC inspection.
- Access the ECT PID.
- Start the engine and warm it up to the normal operating temperature.
- Cool down the engine to that the ECT PID is 30°C {86°F} or less .
- Turn the ignition switch to the ON position.
- Verify that the PCM terminal 10 voltage is B+
and the AIR pump is not operating.
- If the PCM terminal 10 voltage is not B+, inspect and repair or replace open or short circuit between PCM terminal 10 and AIR solenoid valve connector B.
- If the AIR pump is operating inspect for the following:
- AIR pump relay (stuck closed)
- Wiring harnesses and connectors (Main relay terminal C-AIR pump relay-PCM terminal 40/AIR PUMP fuse-AIR pump relay-AIR pump)
- Start the engine.
- Verify that the AIR pump is operating and the PCM terminal 10 voltage is 0 V
after the engine is started.
- If the AIR pump does not operate, inspect for the following:
- AIR pump relay (stuck open)
- AIR pump (internal malfunction)
- Wiring harnesses and connectors (Main relay terminal C-AIR pump relay-PCM terminal 40/AIR PUMP fuse-AIR pump relay-AIR pump-GND)
- If PCM terminal 10 voltage is not 0 V , inspect and repair or replace open or short circuit between PCM terminal 10 and AIR solenoid valve connector B.
- If the AIR pump operates and PCM terminal 10 is 0 V
, inspect for the following:
- AIR pump (pressure)
- AIR solenoid valve (stuck or closed)
- Vacuum hose (Intake manifold-vacuum tank-AIR solenoid valve-AIR control valve)
- Secondary air passage (AIR pump-AIR control valve-exhaust manifold)
- If the AIR pump does not operate, inspect for the following:
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.