Diagnosis & Repair

WARNING: This page is about a different car, the 2003 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.

For wiring diagram, see Figure. For diagnosis and repair, see Fig 1 and Fig 2 .

Fig 1: Diagnosis & Repair Of Oxygen Sensor Circuit Slow Response (Step 1-3)

Fig 2: Diagnosis & Repair Of Oxygen Sensor Circuit Slow Response (Step 4-8)