P019E
Alternative Fuel Tank A Pressure Sensor Circuit
Generic OBD-II
Common symptoms
What you'll notice
- Check for any loose or damaged wiring connections to the alternative fuel tank A pressure sensor.
- Inspect the alternative fuel tank A pressure sensor for any signs of damage or malfunction.
- Verify the fuel tank pressure by using a diagnostic tool to determine if it is within the specified range.
- Inspect the alternative fuel tank A for any leaks or damage that could affect the pressure sensor circuit.
- If all previous steps fail, consider replacing the alternative fuel tank A pressure sensor.
Common causes
Most likely first
- Faulty or damaged alternative fuel tank pressure sensor
- Wiring or electrical connection issues related to the alternative fuel tank pressure sensor
- Low fuel pressure in the alternative fuel tank
- Faulty or clogged fuel filter in the alternative fuel system
- Malfunctioning fuel pump in the alternative fuel system
How to diagnose & fix
Work through it in order
- Engine misfire or hesitation
- Decreased fuel efficiency
- Difficulty starting the vehicle
- Rough idle
- Illuminated Check Engine Light
Read & clear P019E yourself
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