How To Fix P0172 Error in TOYOTA : Complete Fixing Guide

P0172 System Too Rich (Bank 1) | Black Smoke, MPG Loss & Injector Fix

Mercedes Benz Check Engine, P052E71

This Mercedes has fault code P052E71, which means the crankcase ventilation valve — also called the PCV valve — has failed. This valve controls the pressure inside the engine and routes oil vapours back into the intake to be burned. When it fails, the engine can pull too much vacuum, causing rough running, oil leaks, whistling noises, and engine warning lights. If you ignore it, it can lead to oil consumption issues, vacuum leaks, and eventually damage to seals or other engine components. #merce

Chevrolet Silverado - P0172 P0175 Running Rich

Chevy GMC Code P0172