P019B Code Definition
P019B O2 Sensor Delayed Response - Lean to Rich (Bank 1 Sensor 3)
What Does the Engine Code P019B Mean?
Character "P" in the first position of Diagnostic Trouble Code (DTC) represents the powertrain system (engine and transmission), "0" in the second position means that this is a generic OBD-II (OBD2) DTC. "1" in the third character position in a DTC indicates that the fuel and air metering and auxiliary emission controls is experiencing a malfunction. The last two characters "9B" is DTC number. OBD2 Diagnostic Trouble Code P019B means that O2 Sensor Delayed Response has been detected.
Carly Universal Scanner
How Serious Is the Code P019B?
This issue is not critical yet. Make sure that it is current and fix it early before this leads to more severe issues.
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