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1.2L REVOTRON ENGINE
7
1.2 TROUBLESHOOTING
1. Starting Problems
Condition
Possible Cause
Remedy
Engine does not crank
Insufficient battery voltage/charge
test battery and charging system.
Clean
and
tighten
battery
connections.
Jump start engine.
Battery or charging system
component faulty. Replace as
necessary.
Engine starter motor defective.
Repair or replace starter as
necessary.
Immobilizer system defective.
(as equipped)
Inspect system and repair as
necessary.
Engine components seized.
Inspect engine components for
seizure.
Attempt to rotate crankshaft by
hand.
Overhaul engine as necessary.
Fuses blown out (if any)
Check for blown fuse. Replace the
fuses if damaged.
Engine cranks but does
not start
Obstructed air filter or air inlet.
Clean or replace air filter or inlet.
Incorrect valve/ignition timing or
timing belt broken.
Check timing system components
and repair or replace as necessary.
Faulty spark plugs, wires or ignition
coil.
Check ignition system components
for proper operation. Replace as
necessary.
Malfunctioning engine management
system
component.
(exhaust
sensors and actuators)
Perform engine management
system
diagnostic
test
as
described in this section of the
manual.
Defective Engine Control Unit
(ECU)
Replace as necessary.
Malfunctioning emissions system
component.
Check tank pressure valve, purge
canister valve and charcoal
canister. Repair or replace as
necessary.
Clogged or faulty fuel filter, fuel
regulator, fuel line or fuel pump.
Check fuel system components,
repair or replace as necessary
Clogged or faulty fuel injectors
Check fuel injector operation.
Replace as necessary.
Improper firing order
Check ignition system and fuel
injector connections. Rectify as
necessary.
Inertia switch tripped or defective.
Reset or replace as necessary.