Trouble Diagnoses — Diagnostic Procedure 4 — Hard to Start or Impossible to Start when the Engine is Cold
EF & EC-259flowchartGA16DE engine.
Diagnostic Procedure 4 — Hard to Start or Impossible to Start when the Engine is Cold
1
CHECK BATTERY AND STARTER. Check battery and starter condition. (Refer to EL section.)
N.G.
Repair or replace.
O.K.
2
CHECK FUEL PRESSURE. 1. Pinch fuel feed hose with fingers. 2. When cranking the engine, is there any pressure on the fuel feed hose?
No
Check fuel pump and circuit. (See page EF & EC-318.)
Yes
3
CHECK AIR REGULATOR AND A.A.C. VALVE. When pressing accelerator pedal fully, can you start the engine.
Yes
Check A.A.C. valve, air regulator and circuits. (See pages EF & EC-322.)
No
4
CHECK INJECTOR. 1. Remove distributor from engine. (Crank angle sensor harness connector should remain connected.) 2. Turn ignition switch ON. (Do not start engine.) 3. When rotating distributor shaft slowly by hand, does each injector make an operating sound?
No
Check injector(s) and circuit(s).
Yes
5
CHECK IGNITION SPARK. 1. Disconnect ignition wire from spark plug. 2. Connect a known good spark plug to the ignition wire. 3. Place end of spark plug against a suitable ground and crank engine. 4. Check for spark.
N.G.
Check ignition coil, power transistor unit and their circuits. (See page EF & EC-304.)
O.K.
6
(Go to A on next page.)