p codes 171,174 2187,2188 - Hyundai Sonata Forum
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post #1 of 2 Old 08-15-2019, 01:38 PM Thread Starter
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Question p codes 171,174 2187,2188

I have a 2006 Sonata 3.3 v6. Anyone have any experience with these codes and find a solution to them. 171, 174 engine running to lean. 2187,2188 running to lean or rich at idle.
Gregory Barnes is offline  
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post #2 of 2 Old 09-24-2019, 07:57 PM
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A bad HG, or a bad vacuum leak comes to mind.
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