AutoCodes – Generic – P0184

P0184 Code - Fuel Temperature Sensor 'A' Circuit Intermittent

Quick Answer

The fuel tank temperature sensor is used to detect the fuel temperature inside the fuel tank. Common causes include Faulty Fuel Temperature Sensor, Fuel Temperature Sensor harness is open or shorted, Fuel Temperature Sensor circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0184 indicates Fuel Temperature Sensor 'A' Circuit Intermittent.
Common causes: Common causes include Faulty Fuel Temperature Sensor, Fuel Temperature Sensor harness is open or shorted, Fuel Temperature Sensor circuit poor electrical connection.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 22,092

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on May 29, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0184 Description

The fuel tank temperature sensor is used to detect the fuel temperature inside the fuel tank. The sensor modifies a voltage signal from the Engine Control Module (ECM). The modified signal returns to the ECM as the fuel temperature input. The sensor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

OBDII Code P0184 - Fuel Temperature Sensor 'A' Circuit Intermittent - AutoCodes.com — P0184 Code - Fuel Temperature Sensor 'A' Circuit Intermittent

What does this mean?

What are the Possible Causes of the DTC P0184?

Faulty Fuel Temperature Sensor
Fuel Temperature Sensor harness is open or shorted
Fuel Temperature Sensor circuit poor electrical connection

How to Fix the DTC P0184?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What does this mean?

Code Tech Notes

Replaced Fuel Temperature Sensor

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0184 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0184 code?

Need more information on how to fix the P0184 code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P0184 code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P0184 Chevrolet — Fuel Temperature Sensor Circuit Erratic
P0184 GMC — Fuel Temperature Sensor Circuit Erratic
P0184 Mazda — Fuel Temperature Sensor Signal Circuit Fault
P0184 Mercedes-Benz — Fuel Temperature Sensor 'A' Circuit Intermittent

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0184 Code

1. What are the common symptoms of OBDII code P0184?

- Common symptoms include poor fuel economy, rough idling, difficulty starting the vehicle, and an illuminated check engine light.

2. What does the OBDII code P0184 indicate?

- OBDII code P0184 indicates a malfunction in the Fuel Temperature Sensor 'A' Circuit, specifically an intermittent issue with the sensor.

3. What are the possible causes of OBDII code P0184?

- Possible causes include a faulty fuel temperature sensor, damaged wiring or connectors in the sensor circuit, and issues with the engine control module (ECM).

4. How can I diagnose the cause of OBDII code P0184?

- Diagnose the code by checking the fuel temperature sensor for proper resistance values, inspecting the sensor wiring and connectors for damage, and using a scan tool to monitor sensor data.

5. Can I drive my vehicle with OBDII code P0184?

- It is not recommended to drive the vehicle with OBDII code P0184, as it can lead to poor engine performance and potential fuel system issues.

6. How do I repair OBDII code P0184?

- Repair options include replacing the fuel temperature sensor, repairing or replacing damaged wiring or connectors, and resetting the ECM after the issue is resolved.

7. Is it easy to replace the fuel temperature sensor associated with OBDII code P0184?

- Replacing the fuel temperature sensor can vary in difficulty depending on the vehicle model, but it is generally a straightforward process that can be done with basic tools.

8. Can a dirty fuel filter cause OBDII code P0184 to trigger?

- While a dirty fuel filter can affect fuel system performance, it is not a direct cause of OBDII code P0184. Focus on checking the fuel temperature sensor and related components.

9. Will resetting the check engine light resolve OBDII code P0184?

- Simply resetting the check engine light will not resolve OBDII code P0184. The underlying issue causing the code must be diagnosed and repaired to clear the code effectively.

10. How important is it to address OBDII code P0184 promptly?

- It is important to address OBDII code P0184 promptly to prevent potential fuel system issues, poor engine performance, and further damage to engine components.