P340B

Deactivation/Intake Valve Control Circuit Bank 2

Severity

⚠️ Medium

Can you drive?

Yes, but get it checked soon

Approx. repair cost

$17–167 (est.)

Symptoms

Unstable engine idling
Reduced engine power
Increased fuel consumption
Check Engine Light Illuminates
Problems when switching engine operating modes

Causes

Open or short circuit in control circuit
Valve deactivation control solenoid malfunction
Problems with the wiring harness
Mechanical failure of the valve deactivation system
Engine control unit malfunction

How to Fix

Check the integrity of the control circuit
Diagnose the operation of the control solenoid
Inspect the wiring harness for damage
Check the mechanical components of the deactivation system
If necessary, replace faulty components

Related codes

P340A P340C P340D