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O4 GMC Envoy code PO410

Updated: 10/22/2022
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15y ago

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Secondary air injection system fault PO410 The air injection system is monitored for faults. Probable causes: 1. Circuit relay defective or fuse open 2. Check conncetor and wiring 3. Air pump defective or hoses blocked

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15y ago
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Q: O4 GMC Envoy code PO410
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