34. Detect Malfunctioning Part

Check the following.

• Check fuel pressure regulator and repair or replace if necessary. Refer to FUEL PRESSURE CHECK  .
• Check mass air flow sensor and its circuit, and repair or replace if necessary. Refer to DTC P0102, P0103 MAF SENSOR  .
• Check injector and its circuit, and repair or replace if necessary. Refer to INJECTOR CIRCUIT  .
• Check engine coolant temperature sensor and its circuit, and repair or replace if necessary. Refer to DTC P0117, P0118 ECT SENSOR  and DTC P0125 ECT SENSOR  .

OK or NG 

OK : GO TO 36. CHECK ECM FUNCTION .

NG :

1. Repair or replace.
2. GO TO 35.