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21/10/2026 7:16 pm
Topic starter
I have a 2004 Mazda 3i 2.0L 4 cylinder that has a check engine light on. The MIL DTC P2188 System too rich at idle bank 1. When I am at a stop light and press on the gas pedal it hesitates. Sometimes it dies while driving. Before this started it had a check engine light on and the code was P2177 system too lean off idle (bank 1) with no issues and the check engine light turned off and that code went away. What are the causes of the P2188 code and how do I start diagnosing it?
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21/10/2026 7:19 pm
What are the causes of the P2188 code and how do I start diagnosing it?
