We use cookies for basic analytics — nothing loads until you accept. You can decline and keep browsing normally. Privacy Policy

P019C

O2 Sensor Delayed Response - Rich to Lean Bank 2 Sensor 3

What this code means

Diagnostic trouble code P019C indicates: O2 Sensor Delayed Response - Rich to Lean Bank 2 Sensor 3. It was set by your vehicle's onboard diagnostics system and will typically keep the check engine light on until it's addressed.

ECUs that can switch off P019C

P019C is part of the Lambda / O2 OFF group. These ECUs support Lambda / O2 OFF, which switches it off:

Remove P019C permanently

Upload your ECU file and DTC Doctor will detect this code (and any others) automatically, then remove it for good — no dealer visit, no guesswork.

Analyze My File Free →

← Browse all DTC codes