The engine control module has detected a high voltage condition in the control circuit of the cylinder 8 exhaust valve deactivation solenoid. A short to voltage or open low-side path causes the driver to read above the expected range, disabling cylinder deactivation requests for cylinder 8.
Medium severity. Can I keep driving?Drive little and gently. If you hear timing chain noise or the oil light comes on, shut off the engine.
Cylinder 8 is numbered according to the manufacturer: check your engine's manual before working on it.
Most likely causes
- Solenoid or wiring shorted to power
- Solenoid coil open
- ECM driver failed
What to check, in order
Start with the simplest. You can tick off each step.
Good to know
- Repair difficulty: hard
- It affects emissions.
What each character of P3464 means
- P: Powertrain: engine and transmission
- 3: Generic or manufacturer code, depending on the range
- 4: Emissions
- 64: Specific fault in that system
Frequently asked questions
Can I keep driving with code P3464?
Drive little and gently. If you hear timing chain noise or the oil light comes on, shut off the engine.
What causes code P3464?
The most common causes are: solenoid or wiring shorted to power; solenoid coil open; eCM driver failed.
Related codes
- P3463Cylinder 8 Exhaust Valve Control Circuit Low
- P3447Cylinder 6 Exhaust Valve Control Circuit Low
- P3488Cylinder 11 Exhaust Valve Control Circuit High
- P3439Cylinder 5 Exhaust Valve Control Circuit Low
- P3432Cylinder 4 Exhaust Valve Control Circuit High
- P3424Cylinder 3 Exhaust Valve Control Circuit High
- P3416Cylinder 2 Exhaust Valve Control Circuit High
Sources
Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.