OBD Guide

P2A44

Alternative Fuel Tank B Pressure Sensor Circuit High

P2A44 is an OBD-II diagnostic trouble code meaning: Alternative Fuel Tank B Pressure Sensor Circuit High. Common causes: fuel tank pressure sensor b 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 comes on
  • Reduced engine power
  • Increased fuel consumption
  • Unstable engine operation at idle
  • Problems starting the engine

Causes

  • Fuel tank pressure sensor B malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Corroded contacts or damaged wiring harness
  • Engine control unit malfunction

How to Fix

  1. Check the continuity of the pressure sensor circuit
  2. Inspect connectors and contacts for corrosion or damage
  3. Check the functionality of the pressure sensor
  4. Replace pressure sensor if necessary
  5. Check and replace wiring harness if necessary

Related codes

Error P2A44 by Vehicle Brand

FAQ

What does the P2A44 code mean?

P2A44 is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Tank B Pressure Sensor Circuit High

What causes a P2A44 error code?

The most common causes of P2A44 include: Fuel tank pressure sensor B malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Corroded contacts or damaged wiring harness.

How do I fix a P2A44 diagnostic trouble code?

To fix P2A44: Check the continuity of the pressure sensor circuit. Inspect connectors and contacts for corrosion or damage. Check the functionality of the pressure sensor. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2A44?

Yes, but get it checked soon

How much does it cost to fix P2A44?

The estimated repair cost for P2A44 is $17–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat