Code result
P2195
O2 Sensor Signal Stuck Lean
Moderate severity
What it means
The upstream oxygen sensor on bank 1 returns a constant lean signal during conditions where rich content is expected (for example after a deceleration fuel cut-off recovery). Usually a sensor that has lost its rich-side response or a slow heater warm-up.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
Upstream sensor failed stuck lean
highOne of the most commonly reported causes for this code — check this first.
Sensor heater slow to warm up
mediumA plausible cause — test and verify before replacing parts.
Related help
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