What is a code 21 on the engine diagnostics check, ambient sensor or O2?

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Problem idling when sitting still with engine light coming on while sitting. Idles rough What is a code 21 on the engine diagnostics check, ambient or O2 sensor?

vacoonhunter in Culpeper VA

Jan 28, 2011

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RepairPal Certified shops can diagnose and repair your 1995 Dodge Ram 1500. 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 Dodge repair shops?

RepairPal Certified shops can diagnose and repair your 1995 Dodge Ram 1500. They provide transparent pricing with a minimum 12-month or 12,000-mile warranty on repairs and services.

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