TorqueMech Beta
TorqueMech OBD Code Guide

P0402 - Exhaust Gas Recirculation Flow Excessive Detected

EGR flow is higher than expected.

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Code Meaning

EGR flow is higher than expected.

Common Causes

EGR valve stuck open
Control solenoid issue
Carbon preventing valve from seating

Quick Checks

  • Inspect EGR valve for sticking
  • Check control solenoid
  • Check for rough idle/stall symptoms

Likely Repairs

Use test results to confirm the fault before pricing the repair.

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Related Codes

P0401
Exhaust Gas Recirculation Flow Insufficient Detected
Open ->
P0403
Exhaust Gas Recirculation Circuit Malfunction
Open ->

Next Steps

Move from the code to a diagnosis path, then into repair pricing once the fault is confirmed.

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