Q: Evaporative emissions
my engine light want go off i have a 2000 Nissan Altima and it's pulling 3 codes 1. engine coolant circuit 2. knock sensor 1 circuit ( Bank 1 or Single Sensor) 3. P14XX Manufacturer Controlled Auxiliary Emission Controls. i took the car to Autozone and they did not find any codes so i took the car to get it inspected and that is when it pulled the codes and i have changed all the the sensor and the gas cap and it want go off what else could it be?
My car has 1640000 miles.
My car has an automatic transmission.
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