Toggle Side Panel

Shopping Cart

No products in the basket.

Shopping Cart

No products in the basket.

Close search
Home / DTC / P268C — 1 - Injector data incompatible

P268C — 1 - Injector data incompatible

Detailed page for trouble code P268C.

34,405codes
59brands
11,914generic
22,491specific
All codes P-codes (Powertrain) B-codes (Body) C-codes (Chassis) U-codes (Network/User) Tesla Alerts
Reset
Code

P268C

LAND ROVER P — Powertrain

1 - Injector data incompatible

Brand: LAND ROVER
Type: P — Powertrain
AI status
Completed
ready
Completed 100%
Page language: EN

Causes

  • Recently replaced or re-used fuel injector(s) not coded to the vehicle
  • Incorrect injector part number or aftermarket injector with different characteristics
  • Corroded/bent injector connector or poor electrical connection
  • Damaged injector harness or intermittent wiring/short to power or ground
  • PCM/ECU lost learned injector data or has corrupted memory
  • Software or calibration mismatch after a module update or replacement

Symptoms

  • Malfunction Indicator Lamp (MIL) illuminated
  • Rough idle or misfire on affected cylinder(s)
  • Reduced engine power or hesitation on acceleration
  • Hard starting or increased crank time
  • Possible limp-home mode on some vehicles

What to check

  • Read full ECU memory and note freeze-frame data and related codes
  • Confirm vehicle VIN, software/calibration level and recent service history (injector or ECU replacement)
  • Visually inspect injector connectors for corrosion, bent pins, or poor seating
  • Measure injector coil resistance and compare to spec for that injector type
  • Check harness continuity between injector connector and ECU (pins) and for shorts to battery/ground
  • Check fuel rail pressure and condition of injectors for mechanical faults

Signal parameters

  • Injector ID / coding value (manufacturer-specific)
  • Injector coil resistance (Ohms) per cylinder
  • Injector pulse width (ms) during idle and load
  • Cylinder balance / trim values
  • Misfire counters per cylinder
  • Fuel rail pressure (bar/psi)

Diagnostic algorithm

  1. Connect OEM-level diagnostic tool and retrieve detailed injector data, recorded parameters and freeze-frame
  2. Check for and record any other related DTCs (injector circuit, misfire, CAN bus)
  3. Visually inspect and reseat injector electrical connectors; repair any damaged pins or terminals
  4. Measure resistance of each injector and compare to specification; record any outliers
  5. Perform harness continuity and short-to-power/ground checks on injector circuits back to the ECU
  6. If a replacement injector is present, confirm correct part number and compatibility with vehicle
  7. Use manufacturer diagnostic tool to read injector ID/coding; if missing or incorrect, perform injector coding/programming procedure per service documentation
  8. If coding cannot be written or values are inconsistent, consider swapping injectors to see if the fault follows the injector (helps isolate harness vs injector vs ECU)
  9. If wiring and injectors test good, check/perform ECU software/firmware update or reflash and clear learned injector adaptations, then re-run adaptations per procedure
  10. Clear codes and road-test. Monitor for return of P268C and verify drivability and cylinder balance

Likely causes

  • Injector(s) fitted but not programmed with correct ID/coding
  • Injector wiring open/short affecting injector ID or control signals
  • Injector internal fault causing abnormal electrical parameters
  • PCM needs software reflash or injection adaptation reset
  • Modules from different production spec or vehicle option fitted without reconfiguration

Fault status

⚠️ Status
Injector data incompatible — ECU detected mismatch between expected and current injector information; MIL may be set.
🟡 Repair difficulty: Medium
⏱️ Diagnostic time: 1.0-3.0 hours

Similar codes

P0200 P0201 P0204 P0261 P0264 P0300
320

Browse 320 LAND ROVER manuals: repair procedures, diagnostics, wiring diagrams, component locations, service data and Labor Times by year, model and trim.

LAND ROVER

Your experience will help others
+100 karma for a short comment :)
Keep it short and practical. Up to 500 characters.
Send to email

Report

Harassment or bullying behavior
Contains mature or sensitive content
Contains misleading or false information
Contains abusive or derogatory content
Contains spam, fake content or potential malware

Block Member?

Please confirm you want to block this member.

You will no longer be able to:

  • See blocked member's posts
  • Mention this member in posts
  • Invite this member to groups
  • Message this member
  • Add this member as a connection

Please note: This action will also remove this member from your connections and send a report to the site admin. Please allow a few minutes for this process to complete.

Report

You have already reported this .