OBD Guide

P019F

Alternative Fuel Tank A Pressure Sensor Performance

P019F is an OBD-II diagnostic trouble code meaning: Alternative Fuel Tank A Pressure Sensor Performance. Common causes: fuel tank pressure sensor a fault, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • Unstable engine operation
  • Power reduction
  • Increased fuel consumption
  • Difficulty starting the engine

Causes

  • Fuel tank pressure sensor A fault
  • Open or short circuit in wiring harness
  • Poor contact in connectors
  • ECU malfunction
  • Leak in the fuel system

How to Fix

  1. Check the integrity of the wiring harness and connectors
  2. Check the sensor readings using a scanner
  3. Replace pressure sensor if necessary
  4. Check the fuel system for leaks
  5. Reset the error and check if it returns

Related codes

Error P019F by Vehicle Brand

FAQ

What does the P019F code mean?

P019F is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Tank A Pressure Sensor Performance

What causes a P019F error code?

The most common causes of P019F include: Fuel tank pressure sensor A fault; Open or short circuit in wiring harness; Poor contact in connectors; ECU malfunction.

How do I fix a P019F diagnostic trouble code?

To fix P019F: Check the integrity of the wiring harness and connectors. Check the sensor readings using a scanner. Replace pressure sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P019F?

Limited driving only, diagnose soon

How much does it cost to fix P019F?

The estimated repair cost for P019F is $56–167. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat