Suzuki Wagon R Manual page 366

Condition
Engine has no Ignition system out of order
power D Faulty spark plug
D Faulty ignition coil with ignitor
D Leaks, loose connection or disconnection of
D Faulty knock sensor
Engine overheating
Fuel system out of order
D Clogged fuel hose or pipe
D Malfunctioning fuel pump
D Air inhaling from intake manifold gasket or
Engine and emission control system out of
order
D Malfunctioning EGR valve (if equipped)
D Maladjusted accelerator cable play
D Poor performance of TP sensor, ECT sensor or
D Faulty fuel injector(s)
D Faulty ECM
Low compression
Others
D Dragging brakes
D Slipping clutch
Possible Cause
high-tension cord
throttle body gasket
MAP sensor
ENGINE DIAGNOSIS 6-27
Referring Item
Spark plugs in Section 6F1
Ignition coil in Section 6F1
High-tension cords in Section 6F1
Knock sensor malfunction in this
section
Refer to "Overheating" section
Diagnostic Flow Table B-3 in
Section 6
Diagnostic Flow Table B-2
EGR system inspection in Section
6E
Accelerator cable play in Section
6E
TP sensor, ECT sensor or MAP
sensor in Section 6E
Diagnostic Flow Table B-1
Previously outlined
Trouble diagnosis in Section 5
Trouble diagnosis in Section 7C