P0170 - Fuel Trim Malfunction Bank 1
- Intake air leaks
- Faulty front heated oxygen sensor
- Ignition misfiring
- Faulty fuel injectors
- Exhaust gas leaks
- Incorrect fuel pressure
- Lack of fuel
- Faulty Mass Air Flow (MAF) sensor
- Incorrect Positive Crankcase Ventilation (PCV) hose connection
When is the code detected?
- Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), the ECM judges the condition as the fuel injection system malfunction and light up the Malfunction Indicator Light (MIL) (2 trip detection logic).
P0170 Information for specific makes
P0170 BMW Fuel Trim Bank 1
P0170 CHRYSLER Fuel Trim Malfunction Bank 1
P0170 DODGE Fuel Trim Malfunction Bank 1
P0170 HYUNDAI Fuel Trim Bank 1
P0170 INFINITI Fuel Trim Malfunction Bank 1
P0170 JEEP Fuel Trim Malfunction Bank 1
P0170 KIA Fuel Trim Bank 1 Too Rich Or Lean
P0170 MAZDA Bank 1 Adaptive Fuel Table At Calibrated Limit
P0170 MERCEDES-BENZ Fuel Trim Malfunction Bank 1
P0170 MITSUBISHI Fuel Trim Malfunction Bank 1
P0170 NISSAN Fuel Trim Malfunction Bank 1
P0170 VOLKSWAGEN Fuel Trim Bank 1
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