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TROUBLE DIAGNOSIS EC-107 [KA24DE] C D E F G H I J K L M A EC DATA MONITOR (SPEC) MODE NOTE: ACTIVE TEST MODE Monitored item [Unit] ECM INPUT SIG- NALS MAIN SIG- NALS Description Remarks ENG SPEED [rpm] × × ● Indicates the engine speed computed ° signal) of the camshaft position sensor. MAS A/F SE-B1 [V] × × ● The signal voltage of the mass air flow ● When engine is running specification B/FUEL SCHDL ● “Base fuel schedule” indicates the fuel ● When engine is running specification A/F ALPHA-B1 [%] × ● The mean value of the air-fuel ratio feed- ● When engine is running specification ● This data also includes the data for the TEST ITEM CONDITION JUDGEMENT CHECK ITEM (REMEDY) FUEL INJEC- ● Engine: Return to the original ● Change the amount of fuel injec- If trouble symptom disappears, see ● Harness and connector ● Fuel injector ● Heated oxygen sensor 1 IGNITION TIM- ● Engine: Return to the original ● Timing light: Set ● Retard the ignition timing using If trouble symptom disappears, see ● Adjust initial ignition timing IACV-AAC/V ● Engine: After warming up, idle the ● Change the IACV-AAC valve Engine speed changes according to ● Harness and connector ● IACV-AAC valve POWER BAL- ● Engine: After warming up, idle the ● Air conditioner switch: OFF ● Shift lever: P or N ● Cut off each injector signal one at Engine runs rough or dies. ● Harness and connector ● Compression ● Fuel injector ● Power transistor ● Spark plugs ● Ignition coils ENG COOLANT ● Engine: Return to the original ● Change the engine coolant tem- If trouble symptom disappears, see ● Harness and connector ● Engine coolant temperature sen- ● Fuel injector FUEL PUMP ● Ignition switch: ON ● Turn the fuel pump relay “ON” Fuel pump relay makes the operat- ● Harness and connector ● Fuel pump relay |