Thread: Air Injection System Faulty?
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Old 05-25-2005, 11:06 PM
deanyel deanyel is offline
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Join Date: Aug 2003
Location: Phoenix
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Air Injection System Faulty?
92 400E with about 141k, check engine light periodically, fault code 4 on the DM - "Air Injection System Faulty". What does this mean? Something to do with the air pump?
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