Suzuki RA410, Manual

Page: 259 / 761

ENGINE 6-15
Condition Possible Cause Referring Item
Excessive
hydrocarbon (HC)
emission or
Excessive carbon
monoxide (CO)
emission
Ignition system out of order
Defective spark plug
Leaky or loosely connected high-tension
cord
Cracked rotor or cap in distributor
Fuel system out of order
Fuel pressure out of specification
Engine and Emission control system
out of order
Lead contamination of three way catalytic
converter (if equipped)
Malfunctioning PCV valve
Faulty EVAP control system
Closed loop system (A / F feed back
compensation) fails (vehicle with HO2S)
– Faulty TP sensor
– Faulty ECT sensor or MAP sensor
– Faulty HO2S
Maladjusted CO adjusting resistor
(vehicle without HO2S)
Faulty injector
Faulty ECM/PCM
Low compression
High-tension cords in SECTION 6F1.
Distributor in SECTION 6F1.
Fuel pressure check in SECTION 6E1.
Check for absence of filler neck restrictor.
PCV valve in SECTION 6E1.
EVAP control system check in SECTION
6E1.
Check oxygen sensor output voltage
referring to DTC No.14 Diag. Flow Table in
SECTION 6E1.
Idle mixture adjustment in SECTION 6E1.
Fuel injector in SECTION 6E1.
Inspection of ECM/PCM and its circuit in
SECTION 6E1.
Previously outlined.
Excessive nitrogen
oxides (NOx)
emission
Fuel system out of order
Fuel pressure out of specification
Engine and emission control system
Lead contamination of three way catalytic
converter (if equipped)
Faulty EGR system (if equipped)
Closed loop system (A / F feed back
compensation) fails (vehicle with HO2S)
– Faulty TP sensor
– Faulty ECT sensor or MAP sensor
– Faulty HO2S
Faulty injector
Faulty ECM/PCM
Fuel pressure check in SECTION 6E1.
Check for absence of filler neck
restrictor.
Diag. Flow Table B-6 in SECTION 6E1.
Check oxygen sensor output voltage
referring to DTC No.14 Diag. Flow Table in
SECTION 6E1.
Fuel injector in SECTION 6E1.
Inspection of ECM/PCM and its circuit in
SECTION 6E1.