P22CE code meaning
Turbocharger Compressor Outlet Switching Valve Stuck Closed
Powertrain system Generic code P22xx codes Check engine light
What P22CE means
P22CE is set when the compressor outlet switching valve was told to open but the boost system shows no sign that the switched path changed over. Nissan documents the code as TC Outlet Switching Valve Stuck Closed for the 2016 Titan XD with the Cummins 5.0 litre V8 diesel and its two-stage turbocharger. Bulletin NTB16-051 (May 2016) links it to operation at or below 0 °C and to hesitation on acceleration after an overnight indoor soak followed by a cold drive below -18 °C; the remedy is reprogramming the ECM. The revised NTB16-051a (June 2017) keeps P22CE in the list. Besides software, frozen or collapsed control hoses and a sticking solenoid are plausible causes. The driver notices weak pull while the second stage should come in.
P22CE at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairAfter a drive cycle
Symptoms of P22CE
- Check engine light on, mostly in cold weather
- Hesitation when accelerating until the engine is warm
- Weak pull in the speed range where the second stage should help
Common causes of P22CE
- Most likelyEngine control software reacting wrongly in cold weather (Nissan Titan XD bulletin)
- PossibleCollapsed, kinked or frozen control hose to the outlet flap actuator
- PossibleSwitching solenoid stuck in the closed position
- Less likelyInsufficient vacuum or pressure supply for the actuator
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Boost switching valve
What each part of P22CE means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 2 | Area: fuel and air metering (injector circuit). |
| CE | The exact fault in that area. |
What to do next
- Note P22CE and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P22CE
What does P22CE mean?
P22CE means "Turbocharger Compressor Outlet Switching Valve Stuck Closed". P22CE is set when the compressor outlet switching valve was told to open but the boost system shows no sign that the switched path changed over. It is a generic code, so it means the same on every make.
Is it safe to drive with P22CE?
Drive gently and only to a workshop. With P22CE the car can go into limp mode (reduced power) to protect itself.
Will P22CE fail an emissions test?
Yes, it can. P22CE is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P22CE to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will P22CE clear itself after the repair?
After the repair the car has to complete a drive cycle (a mix of city and highway driving) before the test runs again. Until then the readiness monitor shows "not ready", which can fail an inspection.