Diagnostic Procedure 6 — Hard to start or impossible to start under normal conditions
EF & EC-73flowchartTROUBLE DIAGNOSES
Diagnostic Procedure 6 — Hard to start or impossible to start under normal conditions
1
CHECK BATTERY AND STARTER. Check battery and starter operation. (Refer to EL section.)
N.G.
Repair or replace.
O.K.
2
Check fuel pressure. [With CONSULT] Select "Fuel Pump" with "FUNCTION TEST" showing on display. Check to ensure fuel hose is pulsating. [Without CONSULT] Pinch fuel hose with fingers. Check to ensure fuel hose becomes tight when fuel pump is operating.
N.G.
Check fuel pump and circuit. Refer to "Fuel Pump". (See page EF&EC-155).
O.K.
3
Check injectors for leaks and A.A.C. valve for operation. Check to ensure engine starts when accelerator pedal is depressed to the floor.
O.K.
Check injectors for leaks. Check A.A.C. valve and circuit. Refer to "A.A.C. Valve". (See page EF&EC-158).
N.G.
4
Check START signal. [With CONSULT] Initiate "STARTER SIGNAL" with "FUNCTION TEST" showing on display or proceed as follows: Check starter signal with "DATA MONITOR" showing on display. Starter signal: OFF (ignition switch turned to "ON") ON (ignition switch turned to "START"). [Without CONSULT] Turn ignition switch to "START". Measure voltage between E.C.U. harness connector terminal 34 and GND. Power voltage: ignition switch turned to "START". Approx. 0 volts: ignition switch turned to any other position.
N.G.
Check starter signal circuit. Refer to "Ignition Signal". (See page EF&EC-140).
O.K.
5
To point A (continued on next page)