P2ADF

Intake Air System Leak Bank 2

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

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
Tightening the clamps and fastenings of the intake manifold
Cleaning and Inspecting the PCV Valve

Related codes

P0171 P0174 P2279