Suzuki Liana RH418, Supplementary Service Manual

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1A-35 Engine General Information and Diagnosis:
Excessive hydrocarbon
(HC) emission or carbon
monoxide (CO) Faulty spark plug “Spark Plug Inspection in Section 1H in related
manual”
Leaky or disconnected high-tension cord “High-Tension Cord Inspection in Section 1H in
related manual”
Faulty ignition coil with ignitor “Ignition Coil Assembly (Including Igniter)
Inspection in Section 1H in related manual”
Low compression “Compression Check in Section 1D”
Lead contamination of three way
catalytic converter Check for absence of filler neck restrictor.
Faulty evaporative emission control
system “EVAP Canister Purge Inspection in Section
1B in related manual”
Fuel pressure out of specification “Fuel Pressure Check”
Closed loop system (A/F feed back
compensation) fails (Faulty TP sensor,
Poor performance of ECT sensor or
MAP sensor) “Throttle Position (TP) Sensor On-Vehicle
Inspection in Section 1C in related manual”,
“Engine Coolant Temperature (ECT) Sensor
Inspection in Section 1C in related manual” or
“Manifold Absolute Pressure (MAP) Sensor
Inspection in Section 1C in related manual”
Faulty injector(s) “Fuel Injector Inspection in Section 1G”
Faulty ECM
Engine not at normal operating
temperature
Clogged air cleaner
Vacuum leaks
Excessive nitrogen
oxides (NOx) emission Improper ignition timing “Ignition Timing Inspection in Section 1H in
related manual”
Lead contamination of catalytic
converter Check for absence of filler neck restrictor.
Fuel pressure out of specification “Fuel Pressure Check”
Closed loop system (A/F feed back
compensation) fails (Faulty TP sensor,
Poor performance of ECT sensor or
MAP sensor) “Throttle Position (TP) Sensor On-Vehicle
Inspection in Section 1C in related manual”,
“Engine Coolant Temperature (ECT) Sensor
Inspection in Section 1C in related manual” or
“Manifold Absolute Pressure (MAP) Sensor
Inspection in Section 1C in related manual”
Faulty injector(s) “Fuel Injector Inspection in Section 1G”
Faulty ECM
Camshaft position control system out of
order
“Oil Control Valve Inspection in Section 1C”
Condition Possible cause Correction / Reference Item