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FuelSeverity Low: usually safe to drive

P0180Fuel Temperature Sensor "A" Circuit

What it means

The ECU has detected an electrical fault in the fuel temperature sensor circuit. The ECU uses fuel temperature to correct the injected quantity (fuel gets thinner when hot).

Symptoms

  • Check engine light
  • Possibly slightly reduced power or harder hot starts

Common causes

  • Open or shorted wiring between the sensor and the ECU
  • Corroded or loose connector
  • Failed fuel temperature sensor

What to check first

  1. Compare the live reading with the real temperature (IR thermometer)
  2. Measure the sensor resistance and compare it with the temperature table
  3. Check the 5 V pull-up and the ground at the connector
Can I drive with P0180? Usually yes. P0180 rarely affects how the car drives, but it keeps the check engine light on and can fail an emissions test.

Generic OBD-II meaning. Manufacturer-specific meanings and checks can differ; always check the service information for the car.

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P0180: questions and answers

What does P0180 mean?

P0180: Fuel Temperature Sensor "A" Circuit. The ECU has detected an electrical fault in the fuel temperature sensor circuit. The ECU uses fuel temperature to correct the injected quantity (fuel gets thinner when hot).

What are the symptoms of P0180?

Check engine light. Possibly slightly reduced power or harder hot starts.

What causes P0180?

Open or shorted wiring between the sensor and the ECU. Corroded or loose connector. Failed fuel temperature sensor.

How do you diagnose P0180?

1. Compare the live reading with the real temperature (IR thermometer) 2. Measure the sensor resistance and compare it with the temperature table 3. Check the 5 V pull-up and the ground at the connector

Can I drive with P0180?

Usually yes. P0180 rarely affects how the car drives, but it keeps the check engine light on and can fail an emissions test.