p2195
Moderate
Lexus · SUVs
O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1)
Quick Answer
Error code P2195 on your Lexus SUVs means: O2 Sensor Signal Biased/Stuck Lean (Bank 1 Sensor 1). This is usually fixable — see the step-by-step guide below.
Affected Models
Likely Causes
How to Fix It
1
Connect OBD-II scanner and monitor sensor voltage
2
Perform vacuum leak smoke test
3
Check fuel pressure with fuel gauge
4
Test oxygen sensor response to load
5
Clean fuel injectors or replace if necessary
Pro Tip
This fix requires some technical knowledge. If you're unsure about any step, consider contacting support or a qualified technician.
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