TROUBLE DIAGNOSES — Consult (Cont'd)
EF & EC-248spec tableData Monitor Mode (Cont'd)
INJ PULSE
CONDITION• Engine: After warming up • A/C switch "OFF" • Shift lever "N" • No-load — Idle
SPECIFICATION2.5 - 3.3 msec.
CHECK ITEM WHEN OUTSIDE SPEC.• Harness and connector • Injector • Air flow meter • Intake air system
INJ PULSE
CONDITION• Engine: After warming up • A/C switch "OFF" • Shift lever "N" • No-load — 2,000 rpm
SPECIFICATION2.5 - 3.3 msec.
CHECK ITEM WHEN OUTSIDE SPEC.• Harness and connector • Injector • Air flow meter • Intake air system
IGN TIMING
CONDITIONditto — Idle
SPECIFICATION10° B.T.D.C.
CHECK ITEM WHEN OUTSIDE SPEC.• Harness and connector • Crank angle sensor
IGN TIMING
CONDITIONditto — 2,000 rpm
SPECIFICATIONMore than 20° B.T.D.C.
CHECK ITEM WHEN OUTSIDE SPEC.• Harness and connector • Crank angle sensor
AAC VALVE
CONDITIONditto — Idle
SPECIFICATION20 - 40%
CHECK ITEM WHEN OUTSIDE SPEC.• Harness and connector • A.A.C. valve
AAC VALVE
CONDITIONditto — 2,000 rpm
SPECIFICATION—
CHECK ITEM WHEN OUTSIDE SPEC.• Harness and connector • A.A.C. valve
AIR COND RLY
CONDITION• Air conditioner switch OFF → ON
SPECIFICATIONOFF → ON
CHECK ITEM WHEN OUTSIDE SPEC.• Harness and connector • Air conditioner switch • Air conditioner relay
ACTIVE TEST MODE
Active Test Mode
FUEL INJECTION TEST
CONDITION• Engine: Return to the original trouble condition • Change the amount of fuel injection using CONSULT.
JUDGMENTIf trouble symptom disappears, see CHECK ITEM.
CHECK ITEM (REMEDY)• Harness and connector • Fuel injectors • Exhaust gas sensor
AAC/V OPENING TEST
CONDITION• Engine: After warming up, idle the engine. • Change the AAC valve opening percent using CONSULT.
JUDGMENTEngine speed changes according to the opening percent.
CHECK ITEM (REMEDY)• Harness and connector • AAC valve
ENGINE TEMP TEST
CONDITION• Engine: Return to the original trouble condition • Change the engine coolant temperature using CONSULT.
JUDGMENTIf trouble symptom disappears, see CHECK ITEM.
CHECK ITEM (REMEDY)• Harness and connector • Engine temperature sensor • Fuel injectors
IGN TIMING TEST
CONDITION• Engine: Return to the original trouble condition • Timing light: Set • Retard the ignition timing using CONSULT.
JUDGMENTIf trouble symptom disappears, see CHECK ITEM.
CHECK ITEM (REMEDY)• Adjust initial ignition timing
POWER BALANCE TEST
CONDITION• Engine: After warming up, idle the engine. • A/C switch "OFF" • Shift lever "N" • Cut off each injector signal one at a time using CONSULT.
JUDGMENTEngine runs rough or dies.
CHECK ITEM (REMEDY)• Harness and connector • Compression • Injectors • Power transistor • Spark plugs • Ignition coils
RADIATOR FAN TEST
CONDITION• Ignition switch: ON • Turn the radiator fan "ON" and "OFF" using CONSULT.
JUDGMENTRadiator fan moves and stops.
CHECK ITEM (REMEDY)• Harness and connector • Radiator fan motor
FUEL PUMP RLY TEST
CONDITION• Ignition switch: ON (Engine stopped) • Turn the fuel pump relay "ON" and "OFF" using CONSULT and listen to operating sound.
JUDGMENTFuel pump relay makes the operating sound.
CHECK ITEM (REMEDY)• Harness and connector • Fuel pump relay