Peugeot Citroen HDI Injector Coding
Supported coding features by PSACOM diagnostic tool https://www.obdtester.com/psacom
What it does
- Codes individual HDI diesel injectors to the engine ECU
- Matches injector calibration codes (IMA / C2I) with ECU
- Ensures precise fuel injection and balanced engine operation
When it is required
- After replacing one or more injectors
- After engine control unit replacement
- After injector swap between cylinders
- When injector-related fault codes are present
Conditions that must be met
- Engine OFF, ignition ON
- Stable battery voltage
- Correct injector codes available
- Diagnostic tool connected
- No active critical fuel system fault codes
What happens during coding
- Injector calibration codes are entered per cylinder
- ECU stores correction values for:
- Injection quantity
- Timing accuracy
- Emission control
- Engine ready for precise fuel delivery
If coding is not performed
- Rough engine operation
- Increased fuel consumption
- Higher emissions
- Misfire or injector fault codes
After coding
- Start engine and check idle smoothness
- Verify injector correction values in live data
- Test drive to confirm proper performance
- Clear any related fault codes