Hyundai Kia Differential Pressure Sensor Replacement
Supported coding features by HiCOM diagnostic tool https://www.obdtester.com/hicom
Differential Pressure Sensor Replacement
What it does
- Resets and adapts the differential pressure sensor for the DPF system
- Ensures accurate measurement of exhaust backpressure
- Allows proper DPF regeneration and monitoring
When it is required
- After replacing the differential pressure sensor
- After replacing DPF or LNT components
- When fault codes indicate incorrect pressure readings
- When DPF regeneration is not occurring as expected
Conditions that must be met
- Sensor properly installed and connected
- Exhaust system sealed and leak-free
- No active DPF or exhaust fault codes
- Ignition ON, engine OFF (unless instructed)
- Stable battery voltage
What happens during the procedure
- ECU clears old sensor adaptation values
- Measures baseline pressure at idle and low load
- Stores new reference for:
- DPF backpressure
- Soot load calculation
- DPF regeneration thresholds are recalculated
If procedure is not performed
- Incorrect DPF regeneration timing
- Excessive soot accumulation
- Fault codes may remain active
- Potential limp mode activation
After replacement
- Verify differential pressure readings in live data
- Perform a short road test
- Confirm DPF regeneration occurs correctly
- Check for absence of DPF or exhaust warnings