Diagnostic Method

Idle speed diagnosis

Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria	Threshold Value	DTC
Actual engine speed - Target engine speed	Less than -300rpm	P050A

Time needed for diagnosis: 7000 ms

Malfunction indicator light illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.

Final ignition timing diagnosis
Judge as NG when the following conditions are established.

JUDGMENT VALUE SPECIFICATION

Malfunction Criteria	Threshold Value	DTC
Final ignition timing - Ignition timing during CSERS* *: CSERS (Cold Start Emission Reduction Strategy) Intermediate ignition timing = Base ignition timing - Retard amount	More than 5.5°CA	P050B

Time needed for diagnosis: 7000 ms

Malfunction indicator light illumination: Illuminates when malfunction occurs in 2 continuous driving cycles.