P20F9

Intake Manifold Runner Control Circuit Performance Bank 2

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Reduced engine power
Unstable operation at idle
Increased fuel consumption
Check Engine light comes on
Dips during acceleration

Causes

Jammed intake manifold flaps
Control solenoid valve malfunction
Open or short circuit in control circuit
Wiring Harness Problems
Malfunction of the engine control unit (rare)

How to Fix

Check the mechanical condition of the intake manifold flaps
Check the operation of the control solenoid valve
Check the integrity of the control circuit (resistance, voltage)
Inspect the wiring harness for damage
If necessary, replace faulty components

Related codes

P20F8 P20FA P2004 P2005