Your vehicle's check engine light and cylinder-12 power loss show an intake valve control circuit—risk; test your module, then repair/reprogram now.

Loss of power on cylinder 12 in your vehicle and check‑engine light—cylinder 12 deactivation/intake valve control circuit low. Scan and test valve module.

Check engine light and power drop on your vehicle? P3490 means Cylinder 12 deactivation/intake valve control performance – test circuit and reprogram.

Cylinder 12 deactivation valve stuck open causes power loss in your vehicle—run a module scan and reprogram or replace it now to avoid engine damage.

High exhaust valve control on cylinder 11 causes power loss in your vehicle; it can damage the valve train. Scan P3488, test wiring, and plan repair.

Cylinder 11 exhaust valve control low is causing power loss in your vehicle—ignore can damage engine. Scan P3487, test the circuit, service valve module.

Cylinder 11 exhaust valve control fault causes power loss in your vehicle—act fast to avoid engine damage. Scan P3486 and arrange module repair now.

Cylinder 11 exhaust valve won’t open on your vehicle—risking power loss and engine damage. Scan the circuit, test the valve and repair or replace it now.

Check engine light and power loss on your vehicle? Cylinder 11 deactivation valve circuit high can reduce performance—scan and repair the circuit now.

Low signal on Cylinder 11 deactivation/intake valve can cause misfire and power loss on your vehicle—scan now and reprogram or replace the control module.