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Home >> Suzuki >> 2001 >> XL-7 Limited >> Repair and Diagnosis >> External Pages >> Different car >> Section 20 (Engine Controls - Self-Diagnostics - 1.8L) >> Diagnostic Tests >> DTC P0133: Heated Oxygen Sensor No. 1 Circuit - Slow Response >> Diagnosis & Repair Procedure

Diagnosis & Repair Procedure

WARNING: This page is about a different car, the 2002 Suzuki Esteem. However, it is still accessible from the selected car via links, so may be relevant.
  1. If engine system check has been performed, go to next step. If engine system check has not been performed, go to A4: ENGINE SYSTEM CHECK  under SYSTEM TESTS.
  2. If any DTCs besides DTC P0133 are set, diagnose those DTCs first. See DIAGNOSTIC TROUBLE CODE DEFINITIONS  . If no other DTCs are set, replace HO2S No. 1. After repair, repeat DTC CONFIRMATION TEST  . Before replacing HO2S No. 1, inspect sensor for contamination. If contamination is present, determine cause and repair before installing new HO2S No. 1.
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