OBD Guide

P1926

Fuel Additive Level Circuit Range/Performance

P1926 is an OBD-II diagnostic trouble code meaning: Fuel Additive Level Circuit Range/Performance. Common causes: additive level sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $28–89.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$28–89 (est.)

Symptoms

  • Check Engine Light Is On
  • Reduced engine power
  • Increased fuel consumption
  • Incorrect additive level readings
  • Possible starting problems (diesel engines)

Causes

  • Additive level sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in connectors
  • Problems with the engine control unit
  • Mechanical damage to the additive tank

How to Fix

  1. Check fuel additive level
  2. Inspect the sensor circuit for damage
  3. Check sensor connectors and contacts
  4. Test additive level sensor
  5. If necessary, replace the sensor or repair the wiring

Related codes

FAQ

What does the P1926 code mean?

P1926 is an OBD-II diagnostic trouble code that indicates: Fuel Additive Level Circuit Range/Performance

What causes a P1926 error code?

The most common causes of P1926 include: Additive level sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in connectors; Problems with the engine control unit.

How do I fix a P1926 diagnostic trouble code?

To fix P1926: Check fuel additive level. Inspect the sensor circuit for damage. Check sensor connectors and contacts. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1926?

Yes, but get it checked soon

How much does it cost to fix P1926?

The estimated repair cost for P1926 is $28–89. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat