P0184

Fuel Temperature Sensor A Circuit Intermittent

Q: Is it safe to drive with P0184?

In most cases yes — the fuel temperature reading only fine-tunes fueling. It's worth fixing so the code doesn't mask a later problem, but it rarely affects drivability.

Q: Can I just clear P0184?

Because the fault is intermittent it may stay away briefly, but it returns until the loose connection or wiring is repaired.

Fuel temperature sensing Generic OBD-II Low

What it means

P0184 means the signal from fuel temperature sensor "A" is cutting out or jumping around intermittently. The computer uses fuel temperature to fine-tune fueling, so a dropout rarely changes how the car drives. The "intermittent" label points to a wiring or connector fault — a chafed wire or a loose pin — more often than a failed sensor.

Low

Can I keep driving? Generally safe to drive — an intermittent fuel-temperature sensor rarely changes how the car runs, though it can slightly affect fuel metering.

Real-world scan data

Seen in

257

scans in the past year

Found in

<0.1%

of scans

0.1%

of scans that found faults

Appears alongside · share of P0184 scans

P0183in 58.0% of scans

P0113in 52.9% of scans

P0101in 49.4% of scans

Figures reflect only diagnostic scans recorded through our own apps and tools. Cars are typically scanned because a symptom or warning light prompted it, so these counts describe our scan records — not the incidence of faults in any model, and not the quality, reliability, or safety of any vehicle. No comparison between manufacturers or models is implied. All trademarks belong to their respective owners; no affiliation or endorsement is implied.

Common symptoms

What you'll notice

Check-engine light on (often intermittent)
Occasional inaccurate fuel-temperature readings
Minor change in fuel economy or performance, if any

Common causes

Most likely first

Intermittent open or short in the sensor wiring (chafing, flexing)Likely
Loose or corroded sensor connectorCommon
Faulty fuel temperature sensor 'A'Common
ECM fault (rare)Less often

How to diagnose & fix

Work through it in order

Read freeze-frame data and wiggle-test the sensor harness while watching live data.
Inspect the connector and wiring for corrosion, chafing, or loose pins.
Compare the fuel-temperature reading against other temperature sensors on a scan tool.
Replace the fuel temperature sensor if the signal drops out with good wiring.
Consider the ECM only after wiring and sensor are ruled out.

FAQ

Quick answers

Is it safe to drive with P0184?+

In most cases yes — the fuel temperature reading only fine-tunes fueling. It's worth fixing so the code doesn't mask a later problem, but it rarely affects drivability.

Can I just clear P0184?+

Because the fault is intermittent it may stay away briefly, but it returns until the loose connection or wiring is repaired.

Read & clear P0184 yourself

Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.

▶ Get it on Google Play

✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX