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P0169 Severity
Identifying an OBD code is just the start of a complete diagnostic routine. Most trouble codes are caused by a sensor reporting a value that is out of range. Just replacing a sensor may not fix underlying issues. Be sure to understand the code, the part or system in your car that the code refers to, and the risks of delaying professional repair.
Proper diagnosis will save you time and money on unnecessary repairs.
Urgent codes indicate immediate action is necessary. These are urgent and significant malfunctions that can cause severe damage to the vehicle or harm the driver and passengers.
vehicle's that are capable of running off of varying levels of ethanol (Flex Fuel, E85), will have a Fuel Composition Sensor in the fuel system so that the engine control module (PCM) can determine the fuel composition and adjust the fuel delivery accordingly. If the fuel composition is incorrect for the vehicle to be able to run without damaging the engine or other components, the PCM will set code P0169.
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OBD-II Code Decreased engine performance is defined as a Incorrect Fuel Composition
vehicle's that are capable of running off of varying levels of ethanol (Flex Fuel, E85), will have a Fuel Composition Sensor in the fuel system so that the engine control module (PCM) can determine the fuel composition and adjust the fuel delivery accordingly. If the fuel composition is incorrect for the vehicle to be able to run without damaging the engine or other components, the PCM will set code P0169.