P3450

Cylinder 7 Deactivation/Intake Valve Control Circuit Performance

Severity

⚠️ Medium

Can you drive?

Limited driving only, diagnose soon

Approx. repair cost

$17–89 (est.)

Symptoms

Unstable engine operation
Power Loss
Increased fuel consumption
Check Engine Light Illuminates
Disabling the cylinder deactivation system

Causes

Malfunction of the cylinder deactivation solenoid valve
Open or short circuit in control circuit
Wiring Harness Problems
Engine control unit malfunction
Mechanical problems with the timing system

How to Fix

Check the condition of the solenoid valve of cylinder 7
Check the integrity of the control circuit and connections
Inspect the wiring harness for damage
Check the operation of the timing system
If necessary, replace faulty components

Related codes

P3440 P3445 P3455