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Home >> Suzuki >> 2007 >> SX4 Base, Automatic >> Repair and Diagnosis >> External Pages >> Different car >> Section 236 (Engine Control System - DTC P0221 Through P0459) >> DTC P0400: Exhaust Gas Recirculation (EGR) Flow Incorrect >> Test Description
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Test Description

WARNING: This page is about a different car, the 2006 Suzuki Verona. However, it is still accessible from the selected car via links, so may be relevant.

The numbers below refer to the step numbers on the diagnostic table.

  1. 3. MAP sensor faults must be diagnosed first. A skewed MAP sensor reading could cause this DTC to set.
  2. 7. An engine mechanical condition may cause the engine to operate poorly, which could cause a low vacuum condition.