Details On DTCs
WARNING: This page is about a different car, the 2016 Mazda CX-5. However, it is still accessible from the selected car via links, so may be relevant.
| DESCRIPTION |
HO2S fuel injection control system:
- P2096:00: Air fuel too lean
- P2097:00: Air fuel too rich
|
| DETECTION CONDITION |
Determination conditions |
- P2096:00: Depending on the correction deviation of the A/F sensor, a condition in which the fuel feedback correction amount (SHRTFT12) for the HO2S is the specified value (2 %
) or more and the sum (SHRTFT12+LONGFT12) of the fuel feedback correction amount and the fuel learning correction amount is the specified value (2.3-2.5 %
) or more continues for a period of 25 s
.
|
- P2097:00: Depending on the correction deviation of the A/F sensor, a condition in which the fuel feedback correction amount (SHRTFT12) for the HO2S is the specified value (-2 %
) or less and the sum (SHRTFT12+LONGFT12) of the fuel feedback correction amount and the fuel learning correction amount is the specified value (-2.5- -2.3 %
) or less continues for a period of 25 s
.
|
| Preconditions |
- HO2S estimated temperature: above 450 °C {842 °F}
|
| Malfunction determination period |
|
| Drive cycle |
|
| Self test type |
|
| Sensor used |
|
| FAIL-SAFE FUNCTION |
|
| VEHICLE STATUS WHEN DTCs ARE OUTPUT |
- Illuminates check engine light.
|
| POSSIBLE CAUSE |
- Erratic signal to PCM
- ECT sensor No. 1 signal malfunction
- MAF sensor signal malfunction
- MAP sensor signal malfunction
- IAT sensor No. 2 signal malfunction
- Related connector or terminals malfunction
- Related wiring harness malfunction
- Improper operation of electric variable valve timing control system
- Electric variable valve timing driver malfunction
- Electric variable valve timing motor malfunction
- Electric variable valve timing actuator malfunction
- Improper operation of hydraulic variable valve timing control system
- Air suction in intake air system
- Poor fuel quality
- HO2S malfunction
- A/F sensor malfunction
- A/F sensor loose
- Exhaust system leakage
- A/F sensor deterioration
- Fuel injector malfunction
- Improper operation of fuel injector
- Fuel injector related wiring harness malfunction
- Improper operation of purge control system
- Purge solenoid valve malfunction
- Purge solenoid hoses improper connection
- Fuel leakage or restriction in fuel line
- MAP sensor malfunction
- MAF sensor malfunction
- Air cleaner element restricted
- PCM malfunction
|