P22D5

Code

LAND ROVER P — Powertrain

Circuit of the intake valve position sensor turbocharger turbine Range / performance

Brand: LAND ROVER

Type: P — Powertrain

Views: UK: 15 EN: 104 RU: 28

AI status

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Page language: EN

Causes

Damaged or corroded sensor connector or wiring (open, short to ground or voltage, high resistance)
Faulty intake valve position sensor (turbine/VGT position sensor)
Stuck, seized or mechanically binding turbocharger actuator/vanes/valve
Contaminated or degraded turbo oil supply causing actuator sticking
Faulty turbocharger actuator (electric or vacuum/hydraulic)
PCM / module internal fault or software/calibration issue

Symptoms

Reduced engine power or poor acceleration
Prolonged turbo lag and reduced boost
MIL (check engine lamp) illuminated
Limp-home mode or limited engine performance
Unusual turbo noises or whine if turbine is mechanically damaged
Excessive smoke under load in some cases

What to check

Read and record freeze frame and all related codes with a capable scan tool
Check live data: commanded vs actual turbine/valve position, sensor voltage or counts
Visual inspection of sensor connector and wiring for damage, corrosion or pin push-out
Wiggle test wiring/connectors while monitoring live data for intermittent faults
Check turbo actuator movement by commanding it with a bi-directional scan tool (or manually where applicable)
Inspect turbo vanes/actuator for carbon build-up, oil contamination or mechanical seizure

Signal parameters

Sensor type: typically position sensor (potentiometer, Hall-effect or VR) reporting proportional position
Expected output: proportional signal across travel (commonly within approx. 0.5–4.5 V or 0–5 V range depending on design)
Signal should change smoothly and monotonically as actuator moves; no sudden jumps or dropouts
Closed-loop control: commanded position vs reported actual should track within a small allowable tolerance
Update rate: continuous position feedback during actuator operation (live data available on scan tool)

Diagnostic algorithm

Connect a factory-level or suitable scan tool. Read and record DTCs, freeze frame and live data for turbine/intake valve position and related sensors (boost pressure, actuator command).
Verify symptom: compare commanded valve/actuator position to actual position while performing commanded moves via the scan tool (actuator test). Note any lag, non-movement or erratic readings.
Perform a visual inspection of the sensor and actuator wiring, connectors and harness routing. Repair any damaged insulation, pins or corrosion.
With ignition ON (engine off) back-probe the sensor connector: verify correct reference voltage, ground and that the signal varies when the actuator is moved. Use appropriate meter or oscilloscope for dynamic analysis.
If the sensor signal is stuck or out of range, disconnect the sensor and check circuit resistance/continuity to the PCM. Repair wiring faults as needed.
Inspect turbo actuator and vane movement mechanically: remove inlet if required to check for carbon deposits, seizure or free-play. Clean or repair mechanical binding issues and ensure oil passages are clear.
If actuator is electrically controlled, verify actuator motor operation and supply under command. Replace actuator if it fails to move or draws abnormal current.
If wiring and actuator operate correctly but sensor output is faulty, replace the intake valve position sensor. Follow manufacturer instructions for component replacement and any special procedures.
After repairs, clear codes and perform a road test or diagnostic verification. Re-scan for codes and verify commanded vs actual positions are within specification. Perform any required relearn/calibration procedures.
If the fault persists after component and wiring checks, consider PCM/software issues and consult manufacturer technical service information for module updates or advanced diagnostics.

Likely causes

Wiring/connectors (intermittent or open/high resistance)
Failed position sensor
Actuator mechanical binding or seized vane
Oil supply issue to actuator causing sluggish movement

Fault status

⚠️ Status

P22D5 - Intake valve position sensor (turbocharger turbine) circuit range/performance. PCM detected sensor output outside expected range or implausible relationship between commanded and actual turbine valve position.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.5-4.0 hours

Repair manuals

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P22D5 — Circuit of the intake valve position sensor turbocharger turbine Range / performance