P2AB5

Cold Start Intake Manifold Runner Control Stuck Closed Bank 1

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine idling
Reduced engine power
Dips during acceleration
Increased fuel consumption
Check Engine Light Is On

Causes

Mechanical jamming of the intake manifold flaps
Malfunction of the electric motor or damper servomotor
Problems with wiring or connectors
Damper position sensor malfunction
Engine control unit software error

How to Fix

Visual inspection of the damper mechanism for jamming
Checking the electric motor or vacuum drive of the dampers
Diagnostics of the damper control circuit (power, ground, signal)
Cleaning the dampers and mechanism from carbon deposits
Checking/updating engine control unit software

Related codes

P2AB6 P2AB4 P2008 P2014