Renault/Nissan Reset Adaptation EGR Valve

Supported coding features by RenCOM diagnostic tool https://www.obdtester.com/rencom

EGR Valve Adaptation Reset

What it does

• Resets learned adaptation values of the EGR (Exhaust Gas Recirculation) valve
• Prepares the system for new calibration and correct position learning
• Ensures proper exhaust gas flow and emissions control

When it is required

• After EGR valve replacement or cleaning
• After ECU replacement or software update
• When EGR-related fault codes are present
• After mechanical repair affecting EGR operation

Conditions that must be met

• Vehicle stationary
• Ignition ON (engine OFF unless specified)
• Stable battery voltage
• Diagnostic tool connected
• No unresolved critical engine faults

What happens during reset

• Stored EGR adaptation values are erased
• ECU prepares to relearn valve positions
• Fault codes related to previous adaptations are cleared

If reset is not performed

• EGR may not operate correctly
• Rough idle, poor performance, or increased emissions
• Fault codes or warning lights may remain

After reset

• Perform EGR valve programming or adaptation procedure
• Verify EGR position and operation in live data
• Clear any remaining fault codes
• Perform test drive to confirm normal engine and emissions behavior

Coverage in RenCOM