p0134
Easy Fix
Acura · SUVs
O2 Sensor Circuit (Bank 1, Sensor 1) No Activity
Quick Answer
Error code P0134 on your Acura SUVs means: O2 Sensor Circuit (Bank 1, Sensor 1) No Activity. This is usually fixable — see the step-by-step guide below.
Affected Models
Applies to all models
EL1YD3YD3-HYYD3-TSTB5TB5-ASYL1
Likely Causes
  1. Faulty oxygen sensor
  2. Sensor connector corrosion
  3. Wiring harness damage
  4. Fouled oxygen sensor from rich fuel mixture
  5. Engine control module issue
How to Fix It
1
Inspect oxygen sensor connector for corrosion
2
Check wiring for damage or breaks
3
Test sensor voltage with multimeter
4
Check for exhaust leaks around sensor
5
Replace oxygen sensor if faulty
Pro Tip
This is a common issue that most users can resolve without specialized tools. Try the first step before moving on to more complex solutions.
Parts You May Need
Oxygen sensor
Sensor socket
Related Error Codes
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