P2288

Code

LAND ROVER P — Powertrain

Injector control pressure above expected level

Brand: LAND ROVER

Type: P — Powertrain

Views: UK: 5 EN: 20 RU: 29

AI status

Completed

ready

Completed 100%

Page language: EN

Read and record freeze frame and live data with a capable scan tool
Check for other stored fuel system DTCs (fuel rail, pump, injectors)
Visually inspect ICP sensor connector and wiring for corrosion, damage, or loose pins
Check fuel level and recent service history (recent repairs, fuel contamination)
Listen for unusual noise from high-pressure pump
Check for fuel leaks, especially on high-pressure lines and return plumbing

ICP sensor nominal output: typically ~0.5–4.5 V (0 V or 4.8 V may indicate over-range) — consult OEM for exact voltages
Typical injector control/rail pressure operating range: 0 up to ~2000 bar (0–200 MPa) for high-pressure common-rail systems — expected pressure varies with engine speed/load and commanded setpoint
Live-data trend: pressure should rise with demand (rpm/load) and follow commanded target; overpressure occurs when measured >> target setpoint

Capture freeze frame data and note engine conditions when fault set (rpm, temp, load)
Verify battery voltage and clear codes; attempt to re-create fault while monitoring live ICP and fuel rail pressure
Visually inspect ICP sensor, connector and wiring harness for damage, corrosion or water ingress; repair as needed
Back-probe ICP sensor and verify sensor reference, ground and signal voltages with key on/engine running; compare to OEM expected values
If wiring/supply/ground are OK, compare ICP sensor reading to an independent fuel-pressure gauge (installed on the fuel rail or test port) to verify accuracy
Inspect fuel return line and regulator/relief valve for restrictions or sticking; check for debris or collapsed hoses
If overpressure confirmed and sensor/wiring good, test or replace fuel pressure regulator or relief valve and retest
If mechanical pump over-delivers (confirmed by tests), inspect/replace high-pressure pump or its control solenoid as per OEM procedure
After repairs, clear codes and perform road/test cycle to confirm fault does not return; if intermittent, consider ECU reflash or further manufacturer diagnostics

Failed or drifting ICP sensor
Open/short or high-resistance circuit in sensor wiring or poor connector pin contact
Stuck regulator/relief valve or blocked return line
High-pressure pump internal fault causing overpressure

⚠️ Status

Injector control pressure above expected level — measured ICP exceeds allowed range or commanded setpoint.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.5-3 hours (may be longer if pump or rail removal required)