OBD Guide

P2CDA

Alternative Fuel Tank A Vacuum Insulation Deteriorated

P2CDA is an OBD-II diagnostic trouble code meaning: Alternative Fuel Tank A Vacuum Insulation Deteriorated. Common causes: mechanical damage to vacuum insulation, corrosion of fuel tank elements. Estimated repair cost: $167–556.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$167–556 (est.)

Symptoms

  • Increased fuel consumption
  • Reduced engine power
  • The smell of fuel in the cabin or around the car
  • Indication of low level of alternative fuel when the tank is actually full
  • Check Engine Light Intermittently Turning On

Causes

  • Mechanical damage to vacuum insulation
  • Corrosion of fuel tank elements
  • Natural wear and tear of insulating materials
  • Malfunction of pressure or temperature sensors
  • Depressurization of the alternative fuel system

How to Fix

  1. Visually inspect the alternative fuel tank for damage
  2. Checking pressure in the alternative fuel system
  3. Diagnostics of pressure and temperature sensors
  4. Replacement of damaged insulation elements or the entire tank
  5. Testing the system for leaks after repair

Related codes

Error P2CDA by Vehicle Brand

FAQ

What does the P2CDA code mean?

P2CDA is an OBD-II diagnostic trouble code that indicates: Alternative Fuel Tank A Vacuum Insulation Deteriorated

What causes a P2CDA error code?

The most common causes of P2CDA include: Mechanical damage to vacuum insulation; Corrosion of fuel tank elements; Natural wear and tear of insulating materials; Malfunction of pressure or temperature sensors.

How do I fix a P2CDA diagnostic trouble code?

To fix P2CDA: Visually inspect the alternative fuel tank for damage. Checking pressure in the alternative fuel system. Diagnostics of pressure and temperature sensors. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2CDA?

Limited driving only, diagnose soon

How much does it cost to fix P2CDA?

The estimated repair cost for P2CDA is $167–556. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat