Suzuki Wagon R Manual page 1113

ENGINE DIAGNOSIS TABLE
Perform troubleshooting referring to following table when ECM (PCM) has detected no DTC and no abnormality
has been found in visual inspection and engine basic inspection previously.
Condition
Hard Starting
(Engine cranks OK)
Possible Cause
Ignition system out of order
D Faulty spark plug
D Leaky high-tension cord
D Loose connection or disconnection of high-
tension cords or lead wires
D Faulty ignition coil
Fuel system out of order
D Dirty or clogged fuel hose or pipe
D Malfunctioning fuel pump
D Air inhaling from intake manifold gasket or
throttle body gasket
D Fuel injector resistor malfunction
Engine and emission control system out of
order
D Faulty idle control system
D Faulty ECT sensor or MAP sensor
D Faulty ECM (PCM)
Low compression
D Poor spark plug tightening or faulty gasket
D Compression leak from valve seat
D Sticky valve stem
D Weak or damaged valve springs
D Compression leak at cylinder head gasket
D Sticking or damaged piston ring
D Worn piston, ring or cylinder
Others
D Malfunctioning PCV valve
GENERAL INFORMATION AND ENGINE DIAGNOSIS 6-1-21
Spark plugs in Section 6F
High-tension cords in Section 6F
High-tension cords in Section 6F
Ignition coil in Section 6F
Diagnostic Flow Table B-3
Diagnostic Flow Table B-3
Fuel injector resistor in Section 6E1
Diagnostic Flow Table P0505
ECT sensor or MAP sensor in
Section 6E1
Compression check in Section
6A
Spark plugs in Section 6F
Valves inspection in Section 6A
Valves inspection in Section 6A
Valve springs inspection in
Section 6A
Cylinder head inspection in
Section 6A
Cylinders, pistons and piston rings
inspection in Section 6A
Cylinders, pistons and piston rings
inspection in Section 6A
PCV system in Section 6E1
Referring Item