OBD Guide

P1924

Fuel Additive Level Circuit Low

P1924 is an OBD-II diagnostic trouble code meaning: Fuel Additive Level Circuit Low. Common causes: fuel additive level sensor 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

  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • Problems starting the engine
  • Unstable operation at idle

Causes

  • Fuel additive level sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Engine control unit malfunction
  • Low level of fuel additive in the tank

How to Fix

  1. Check the fuel additive level in the tank
  2. Check the integrity of the sensor circuit
  3. Check sensor connectors and connections
  4. Test additive level sensor
  5. Replace sensor if necessary

Related codes

FAQ

What does the P1924 code mean?

P1924 is an OBD-II diagnostic trouble code that indicates: Fuel Additive Level Circuit Low

What causes a P1924 error code?

The most common causes of P1924 include: Fuel additive level sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Engine control unit malfunction.

How do I fix a P1924 diagnostic trouble code?

To fix P1924: Check the fuel additive level in the tank. Check the integrity of the sensor circuit. Check sensor connectors and connections. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1924?

Yes, but get it checked soon

How much does it cost to fix P1924?

The estimated repair cost for P1924 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat