P1446 code 98 nissan altima what could it be

Question

I am getting an ombd II code on my 98 nissan altima could it be the gas cap? emphasized text

Answer 1

its possible but more likely to be a broken so lose hose or a clogged valve

 

Possible causes 

- Faulty EVAP Pressure Sensor

- EVAP Pressure Sensor harness is open or shorted

- EVAP Pressure Sensor circuit poor electrical connection

- Blocked rubber tube to EVAP canister vent control valve

- EVAP Water separator

- EVAP canister is saturated with water

- Faulty EVAP canister vent control valve