P0182 Code: Fuel Temperature Sensor Low — Causes & Fix
P0182 means the fuel temperature sensor "A" signal is too low — the sensor used (mainly on diesels/flex-fuel) to adjust fuelling for fuel density.
- Applies to
- All OBD-II vehicles (any make or model)
- Est. repair cost
- $20 – $300
- Time to fix
- 30 minutes – 2 hours
What it means
Causes include a short in the sensor wiring, a failed sensor, or a connector fault. P0182 is a generic OBD-II code defined in the SAE J2012 standard, so it applies to virtually any 1996-or-newer OBD-II vehicle regardless of make. Fix the underlying fault, then clear the code with an OBD-II scan tool — it will return if the problem isn't resolved.
Symptoms
- Check engine light on
- Usually mild running effects
- Possible cold-start quirks
How to fix it
- 1
Inspect the sensor and wiring
1. Locate the fuel temp sensor (often in the fuel system/tank). 2. Check for a shorted signal wire.
- 2
Test/replace
1. Compare resistance to the temperature chart. 2. Replace if faulty, then clear the code.
Frequently asked questions
Is P0182 common?
It mainly appears on diesel and flex-fuel vehicles that use fuel temperature for fuelling. It rarely causes major drivability problems.
Last updated July 19, 2026
Guidance only — always consult a qualified professional or the official service manual before carrying out repairs.