OBD Guide

P2ADF

Intake Air System Leak Bank 2

P2ADF is an OBD-II diagnostic trouble code meaning: Intake Air System Leak Bank 2. Common causes: cracked or torn intake hose, worn intake manifold gaskets. Estimated repair cost: $6–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$6–56 (est.)

Symptoms

  • Rough engine idling
  • Dips or jerking during acceleration
  • Increased fuel consumption
  • Check engine light comes on
  • Possible misfires

Causes

  • Cracked or torn intake hose
  • Worn intake manifold gaskets
  • Leaking vacuum boosters or valves
  • Crack in the intake manifold housing
  • Loose connection of the air duct after the mass air flow sensor

How to Fix

  1. Visually inspect all intake tract hoses and connections for cracks and leaks
  2. Checking the tightness of the system using a smoke machine to pinpoint the location of the leak
  3. Replacing damaged hoses, gaskets or seals
  4. Tightening the clamps and fastenings of the intake manifold
  5. Cleaning and Inspecting the PCV Valve

Related codes

Error P2ADF by Vehicle Brand

FAQ

What does the P2ADF code mean?

P2ADF is an OBD-II diagnostic trouble code that indicates: Intake Air System Leak Bank 2

What causes a P2ADF error code?

The most common causes of P2ADF include: Cracked or torn intake hose; Worn intake manifold gaskets; Leaking vacuum boosters or valves; Crack in the intake manifold housing.

How do I fix a P2ADF diagnostic trouble code?

To fix P2ADF: Visually inspect all intake tract hoses and connections for cracks and leaks. Checking the tightness of the system using a smoke machine to pinpoint the location of the leak. Replacing damaged hoses, gaskets or seals. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with P2ADF?

Limited driving only, diagnose soon

How much does it cost to fix P2ADF?

The estimated repair cost for P2ADF is $6–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat