OBD Guide
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P1431

Fuel Level Sensor 2 Circuit Performance

P1431 is an OBD-II diagnostic trouble code meaning: Fuel Level Sensor 2 Circuit Performance. Common causes: fuel level sensor 2 malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $17–56.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$17–56 (est.)

Symptoms

  • Incorrect fuel level readings
  • Fuel level needle does not move
  • Low fuel light stays on constantly
  • Inability to determine the exact fuel level

Causes

  • Fuel level sensor 2 malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Problems with the ECU

How to Fix

  1. Check the continuity of the fuel level sensor 2 circuit
  2. Inspect the connectors and contacts of the sensor
  3. Check the resistance of fuel level sensor 2
  4. Replace fuel level sensor 2 if necessary

Related codes

P0462P0463P0461

Error P1431 by Vehicle Brand

BuickCadillacChevroletChryslerFordGMGMCLincolnMercuryOldsmobilePlymouthPontiacSaturn

FAQ

What does the P1431 code mean?

P1431 is an OBD-II diagnostic trouble code that indicates: Fuel Level Sensor 2 Circuit Performance

What causes a P1431 error code?

The most common causes of P1431 include: Fuel level sensor 2 malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Problems with the ECU.

How do I fix a P1431 diagnostic trouble code?

To fix P1431: Check the continuity of the fuel level sensor 2 circuit. Inspect the connectors and contacts of the sensor. Check the resistance of fuel level sensor 2. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1431?

Yes, but get it checked soon

How much does it cost to fix P1431?

The estimated repair cost for P1431 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

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