The P0184: Fuel Temperature Sensor A Circuit Intermittent indicates that the signal from the fuel temperature sensor is intermittently dropping out or fluctuating unexpectedly. This can be caused by intermittent connections, a faulty sensor, wiring issues, or a malfunctioning PCM.
P0184 – Quick Overview
| Meaning | P0184: Fuel Temperature Sensor A Circuit Intermittent |
| Is it serious? | Yes, this code can be serious as intermittent sensor signals can lead to incorrect fuel management, affecting engine performance and fuel efficiency. |
| Possible causes | – Intermittent connection in the fuel temperature sensor circuit – Faulty fuel temperature sensor – Wiring or connector issues – Faulty PCM |
| How to diagnose? | – Inspect the fuel temperature sensor for intermittent operation. – Check wiring and connectors for loose or corroded contacts. – Perform a wiggle test to identify intermittent faults. – Replace or repair any faulty components. |
P0184 Meaning
The P0184: Fuel Temperature Sensor A Circuit Intermittent code means that the fuel temperature sensor is providing an inconsistent signal, which can result in improper fuel management and affect engine performance.
Step-by-step diagnostic guide
Follow the outline procedure to diagnose this DTC by eliminating possible causes one by one.
| Action | Description | Tools Needed |
|---|---|---|
| Check for Other Codes | Use an OBD-II scanner to check if there are any other related codes present. These might give additional clues about the problem. | OBD-II Scanner |
| Inspect the Fuel Temperature Sensor | Check the sensor for intermittent operation. Look for signs of wear, damage, or contamination. | Flashlight, Multimeter |
| Check Wiring and Connectors | Inspect the wiring and connectors for loose or corroded contacts that could cause intermittent signal loss. | Flashlight, Multimeter |
| Perform a Wiggle Test | While monitoring the sensor’s signal with a scan tool, gently wiggle the wiring and connectors to see if the signal drops or fluctuates, indicating an intermittent connection. | OBD-II Scanner, Scan Tool |
| Repair or Replace Faulty Components | Repair or replace any components that show signs of intermittent faults, such as the sensor, wiring, or connectors. Ensure all connections are secure and clean. | Replacement Fuel Temperature Sensor, Wire Strippers, Electrical Tape |
| Clear the Code and Test Drive | After completing the necessary repairs, clear the P0184 code using the OBD-II scanner. Take the vehicle for a test drive to ensure the issue is resolved and the code does not return. | OBD-II Scanner, Vehicle Owner’s Manual |
| Recheck for Codes | After the test drive, re-scan the vehicle to ensure the P0184 code has not reappeared. If the code returns, further diagnosis may be required. | OBD-II Scanner |
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I test OBD-II scanners and make DIY Engine diagnostics guides to help you solve your car problems without having to depend on the mechanic. A lot of them will try to scam you or are just no help at all. About Juraj Lukacko