Outline Of Diagnosis
- Diagnosis 1 (at ignition switch ON): Judge as NG when the pressure sensor output value in the leak check valve assembly is largely different from the intake manifold pressure when the ignition switch is ON.
- Diagnosis 2 (during Auto Start Stop): Judge as NG when the pressure sensor output value in the leak check valve assembly is largely different from the intake manifold pressure.
Detect output characteristics malfunction of the pressure sensor in the leak check valve assembly.