In reality, the p0172 code tells the engine control module (ecm) that the air‑to‑fuel mixture on bank 1 is richer than the calibrated. Complete guide covering causes, symptoms, diagnostic steps and repair solutions Learn all about the p0172 code, what causes fuel system too rich (bank 1), and how to diagnose and fix common issues.
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If you're getting a p0172 trouble code and you're not sure what caused it, how you can fix it or what the repair cost is,.
P0172 code means bank 1 is running too rich, often a dirty maf sensor, high fuel pressure, or a leaking injector
This guide explains — in plain english — what code p0172 means, why it happens, what.
