What Does P0170 Mean? The PCM has detected a problem with its ability to control fuel/air mixture when necessary, or received a post catalyst fuel trim request which exceeds its limitations for a particular engine. Fuel trim malfunctions are rarely exhibited in domestic and Japanese vehicles but are more common in European vehicles. Bank 1 denotes the engine bank that contains the number one cylinder. Refer to the manufacturer’s service manual (or equivalent) for the location of the number one cylinder. engine code P0170P0170 fixobd P0170dtc P0170obd code P0170obd2 P0170P0170 car codediagnostic code P0170car code P0170check engine code P0170fehlercode P0170P0170 fiatcodigo P0170codigo falla P0170P0170 kody b??dówcodigo de falla P0170 What are the common causes of P0170 ? The Mass Airflow sensor is a hot wire that senses the volume of air entering the intake manifold. The computer uses this information to control fuel mixture. Defective ECU strategies or components will prevent proper regeneration An air leak forward of the DPF will change the sensor readings resulting in the code What are the symptoms of P0170 ? Symptoms of a P0170 diagnostic trouble code may include: Cherry red hot catalytic converter Poor acceleration The light may stay on or light intermittently as the DPF regenerates. The engine will be sluggish on acceleration. Diminished fuel efficiency How do you troubleshoot P0170 ? Correcting any condition that causes the engine to run rich Correcting any condition that causes the engine to run lean Replacing the powertrain control module Searches related to P0170 - Fuel Trim Malfunction Bank 1 p0170 vauxhall p0170 peugeot p0170 mercedes p0170 fuel trim malfunction (bank 1) vauxhall astra p0170 toyota p0170 mitsubishi p0170 honda p0170 astra
