GM GDI RICH codes P0172 P0175 (Diag & Repair)
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12/21/23
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This 2013 Chevy Impala has some rough idle problems when hot, and is setting the Fuel System Rich codes P0172 and P0175. 120k miles on the clock. The engine oil reeks of gasoline...not good. What s the issue? Repair footage included :) Enjoy! Ivan
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