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1998 TOYOTA TACOMA
2.7L I4•RWD•AUTOMATIC•gas
5 active safety recalls on this vehicle — view recalls
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Repairs0Labor1040Torque1598Fluid17DTC3336Battery2Maintenance0Recalls5
P0436low severityPowertrain

Catalyst Temperature Sensor Range/Performance (Bank 2)

on 1998 Toyota Tacoma 2.7L I4 · RWD

What this code means

The bank 2 catalyst temperature sensor reading is out of the normal range for operating conditions. The signal is present but not accurate.

Symptoms

  • Check engine light on
  • Possible failed emissions test
  • No obvious drivability change

Common causes

  • Faulty catalyst temperature sensor
  • Wiring resistance or corrosion
  • Exhaust leak near sensor
  • Bad PCM

Diagnostic steps

  1. Read code and compare live data
  2. Inspect sensor and connector on bank 2
  3. Check for exhaust leaks near sensor
  4. Replace sensor if readings stay off
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