Error code

OBD2 P0184

OBD2P0184
Diagnostic Trouble Code· Standard OBD-II fault code read from the vehicle's onboard diagnostics.

What it means

Fuel Temperature Sensor A Circuit Intermittent.

Severity

moderateCan drive but may experience poor performance and reduced fuel efficiency.

Summary

P0184 indicates an intermittent issue with the fuel temperature sensor A circuit in your vehicle's engine control system.

Symptoms

  • Poor fuel economy
  • Hard starting
  • Poor performance

Common Causes

  • Wiring problems such as water entry, corrosion, or wire harness damage
  • Faulty fuel temperature sensor
  • ECM (Engine Control Module) issues

Diagnosis

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

Fixes

  • Repair wiring issues and replace faulty components as needed.

FAQ

What does P0184 mean?

P0184 indicates an intermittent fault in the fuel temperature sensor A circuit, which can affect engine performance.

How do I diagnose P0184?

Use a digital multimeter to check resistance and voltage levels in the FTS circuit. Inspect connectors for damage or corrosion.

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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