Error code

OBD2 P0180

OBD2P0180
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Fuel Temperature Sensor A Circuit.

Severity

moderateCan drive but expect poor performance and reduced fuel efficiency.

Summary

P0180 indicates a malfunction in the fuel temperature sensor A circuit, which is used by the ECM to monitor and adjust fuel delivery based on fuel temperature.

Symptoms

  • Poor fuel economy
  • Hard starting
  • Poor performance

Common Causes

  • Electrical short or open circuits due to water entry, corrosion, or wire harness damage.
  • Faulty fuel temperature sensor (FTS) or ECM.

Diagnosis

  1. Use a digital volt-ohm meter to check for proper resistance in the FTS circuit.
  2. Inspect connectors for bent pins, corrosion, or water intrusion.
  3. Test the FTS directly by comparing its resistance to values in the repair manual.

Fixes

  • Repair damaged wiring or replace faulty components such as the fuel temperature sensor or ECM connector.

FAQ

What should I do if my car has P0180?

Start by checking for any visible damage to the wiring and connectors. Use a multimeter to test resistance in the fuel temperature sensor circuit.

Is it safe to drive with P0180?

It is generally safe to drive but expect poor performance and reduced fuel efficiency until the issue is resolved.

View source

Not affiliated with OBD2. Answer summarized from the manufacturer's manual linked above; consult that source for the authoritative procedure.

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