P0172 Code: Easy Steps to Solve It
The P0172 diagnostic trouble code indicates that the engine control module (ECM) has detected an excessively rich fuel mixture in bank 1 of the engine. This means there’s either too much fuel or not enough air entering the combustion chambers, disrupting the ideal air-fuel ratio. When this occurs, it can lead to various performance issues and potentially damage engine components if left unaddressed. P0172 Code