Details On DTCs

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

DTC P013A:00 (PCM, SKYACTIV-G, US) DETECTION CONDITION AND POSSIBLE CAUSE

Description	HO2S: Slow response (during transition from rich to lean)
Detection condition	Determination conditions	The response speed of the HO2S input signal when the air/fuel ratio is fluctuated from rich to lean is slow.
	Preconditions	Fuel injection control: during fuel cut ^1 Catalytic converter estimated temperature: specified value or more HO2S estimated temperature: specified value or more HO2S output voltage during fuel cut: Specified value or more The following DTCs are not detected: HO2S heater: P0037:00 and P0038:00 MAF sensor: P0100:00, P0101:00 and U060F:00 ECT sensor No. 1: P0117:00 and P0118:00 HO2S: P0137:00, P0138:00 and P0140:00 ^1 : Standard can be verified by displaying PIDs using M-MDS
	Drive cycle	2
	Self test type	CM DTC self test
	Sensor used	HO2S
Fail-safe function	Not applicable
Vehicle status when DTCs are output	Not applicable
Possible cause	HO2S malfunction HO2S connector or terminals malfunction HO2S incorrect installation Exhaust system leakage TWC damaged or malfunction HO2S deterioration HO2S heater malfunction Improper operation of purge control system Purge solenoid valve malfunction Improper connection of evaporative hose (purge solenoid valve side) Engine malfunction Insufficient engine compression PCM malfunction