OBD Guide

P1927

Fuel Additive Level Too Low/Empty

P1927 is an OBD-II diagnostic trouble code meaning: Fuel Additive Level Too Low/Empty. Common causes: the fuel additive in the tank has run out, additive level sensor malfunction. Estimated repair cost: $6–33.

Severity
⚠️ Medium
Can you drive?
Yes, but get it checked soon
Approx. repair cost
$6–33 (est.)

Symptoms

  • Check Engine Light Is On
  • Possible reduction in engine power
  • Increased emissions of harmful substances
  • Message on the dashboard indicating low additive level
  • Deterioration of the exhaust gas cleaning system

Causes

  • The fuel additive in the tank has run out
  • Additive level sensor malfunction
  • Open or short circuit in the sensor circuit
  • Problems with the control module responsible for the additive
  • Leakage of additive from the system

How to Fix

  1. Check the fuel additive level in the tank
  2. If necessary, add the additive recommended by the manufacturer.
  3. Check the integrity of the wiring harness to the level sensor
  4. Test additive level sensor
  5. Check the operation of the additive system control module

Related codes

FAQ

What does the P1927 code mean?

P1927 is an OBD-II diagnostic trouble code that indicates: Fuel Additive Level Too Low/Empty

What causes a P1927 error code?

The most common causes of P1927 include: The fuel additive in the tank has run out; Additive level sensor malfunction; Open or short circuit in the sensor circuit; Problems with the control module responsible for the additive.

How do I fix a P1927 diagnostic trouble code?

To fix P1927: Check the fuel additive level in the tank. If necessary, add the additive recommended by the manufacturer.. Check the integrity of the wiring harness to the level sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P1927?

Yes, but get it checked soon

How much does it cost to fix P1927?

The estimated repair cost for P1927 is $6–33. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat