obd-2 codes p-403 andp-405

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replaced egr valve and cleaned egr passage but codes still set after a couple miles

waveatpapa in Spartanburg SC

Nov 2, 2010

2 Replies

What are the best Buick repair shops?

RepairPal Certified shops can diagnose and repair your 2001 Buick Century. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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What are the best Buick repair shops?

RepairPal Certified shops can diagnose and repair your 2001 Buick Century. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

2 Replies

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