P0184 OBD-II Trouble Code: Fuel Temperature Sensor "A" Circuit Intermittent

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0184 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0184 code

P0184 is a diagnostic trouble code (DTC) for "Fuel Temperature Sensor "A" Circuit Intermittent". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P0184 DIAGNOSTIC Get a fair and transparent estimate upfront

Check Engine Light

P0184 trouble code definition

Fuel Temperature Sensor "A" Circuit Intermittent

What the P0184 code means

P0184 is a generic OBD-II code indicating that the fuel temperature sensor A is intermittent; either the sensor input is not steady and goes in and out of operation limits, or the fuel temperature in the fuel tank or fuel rail is erratic beyond specified limits.

What causes the P0184 code?

  • The engine control module (ECM) detects that the sensor circuit is malfunctioning if the sensor input is not steady, as designed for the sensor.

  • Corroded connector to the sensor

What are the symptoms of the P0184 code?

  • The engine will run normally if the sensor is intermittent, unless the fuel is contaminated.

  • Excessive additives in the fuel can cause erratic sensor readings and cause the fuel to boil off at lower temperatures or freeze too early.

  • The ECM sets code P0184 to memory and turns on the Check Engine Light.

How does a mechanic diagnose the P0184 code?

  • Scans codes and documents the freeze frame data, then clears the codes to verify code returns

  • Does a visual check of all the wiring and connections to the sensor, checking for breaks in the wiring or loose connections

  • Disconnects connection to the sensor and checks to see if the sensor is testing within specifications while tapping lightly on the sensor

Common mistakes when diagnosing the P0184 code

Follow these simple guidelines to prevent misdiagnosis:

  • Do a visual check of connections to the sensor to make sure they are making good contact to the fuel temperature sensor.

  • Check the fuel for excessive additives that can cause sensors to become erratic.

How serious is the P0184 code?

  • Drivability symptoms could result from erratic input from the fuel temperature sensor due to extremely hot or extremely cold fuel temperature.

  • The engine may misfire, hesitate and stall if the fuel temperature exceeds normal operating temperatures due to temperature sensor circuit malfunction, or if the fuel rail gets too hot or too cold.

What repairs can fix the P0184 code?

  • Testing the fuel temperature sensor and replacing it if it is out of specifications
  • Repairing or replacing a defective connector or wiring to the sensor
  • Replacing the diesel fuel heater assembly with the temperature sensor

Additional comments for consideration regarding the P0184 code

The code P0184 is used on diesel engines with fuel heaters and on gasoline engines to monitor the fuel temperature in the fuel tank or at the fuel rail. Follow the manufacturer's recommended testing procedures for the vehicle and type of fuel you are working on.

Need help with a P0184 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

P0184
Check Engine Light

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0184 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,484

Rating Summary
3,176
153
40
23
92
3,176
153
40
23
92

Richard

10 years of experience
415 reviews
Richard
10 years of experience
This is the second time I’ve had Richard work on my car. He always does an outstanding job and is quick, knowledgeable and professional. Highly recommended!!
2012 DODGE CHALLENGER - CHECK ENGINE LIGHT IS ON - LAS VEGAS, NEVADA

Michael

13 years of experience
372 reviews
Michael
13 years of experience
Mike was an absolute professional when he arrived. He walked me thru the whole process of my repairs and also made good recommendations for preventive issues. His mechanical knowledge and good customer services was a breath of air and greatly appreciated :-)
2007 CHEVROLET AVALANCHE - CHECK ENGINE LIGHT IS ON INSPECTION - MARIETTA, GEORGIA

Rodrigo

10 years of experience
85 reviews
Rodrigo
10 years of experience
Rodrigo was exactly on time, very professional and friendly. He assessed my car, let me know the exact problem when a previous mechanic from a shop in my area was unable to. I felt he was very honest and sincere letting me know the level of urgency that I deal with the issue. Absolutely no pressure. I will absolutely use Rodrigo the next time I need anything to do with my car and will tell everyone about him. This is such a great service, I will never go to another mechanic again. It is so convenient. I couldn’t be happier. :)
2013 SMART FORTWO - CHECK ENGINE LIGHT IS ON - LAS VEGAS, NEVADA

Ricardo

8 years of experience
223 reviews
Ricardo
8 years of experience
Great service and was very helpful on what maintenance my vehicle needed and what to expect in the future. Would definitely recommend to anyone and will.
2004 MITSUBISHI LANCER - CHECK ENGINE LIGHT IS ON - LOS ANGELES, CALIFORNIA

More related articles

Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
Veteran and Military Driver Laws and Benefits in Idaho
The state of Idaho offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch in the...
Veteran and Military Driver Laws and Benefits in New Mexico
The state of New Mexico offers a number of benefits and perks for those Americans who have either served in an Armed Forces branch...

Related questions

Q: My battery is dead and my traction control button does not work.

The water spill onto or inside the traction control button may very well have shorted the electrical components inside the button switch. This may need to be taken apart and either replaced or cleaned out to fix. Your check...

Q: P0121 02 vw beetle

You will need to have codes cleared and then the system tested again to see if it runs good or codes return. If the problem is still there then monitor data for the AAP1 and AAP2 on scanner to see...

Q: My engine light keeps coming on. We have replaced the air/fuel ratio sensor four times.

Hey there. As you may know, this may be caused by a few different things, one of which is a faulty sensor (which you have already replaced). This may also be caused by an intake air leak, leaking or dirty...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com