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1.2L REVOTRON ENGINE
9
3. Poor Engine Performance
Condition
Possible Cause
Remedy
Maximum RPM -low
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.
Obstructed air filter or air inlet
Clean or replace air filter or inlet.
Improper grade or contaminated
fuel
Rush fuel system with fresh, clean,
fuel of the correct type. Replace
fuel filter.
Faulty spark plugs, wires, or ignition
coil
Check ignition system components
for proper operation. Replace as
necessary.
Malfunctioning engine management
system component
Perform engine management
system
diagnostic
test
as
described in this section of the
manual.
Fuel filter if clogged.
Replace the fuel filter.
fuel lines are pinched or clogged
Correct the routine to avoid pinch,
or allow shop air to clear the clog in
the fuel lines.
Improper Electrical supply at pump
connector
If electrical supply is in proper
check electrical system.
In adequate fuel pump pressure
IF fuel pump does not built
pressure then replace.
Incorrect crank angle signal
Check sensor gap and adjust to
1.0 ± 0.4mm
Clogged or faulty fuel injector(s)
Check fuel injector operation.
Replace as necessary.
Improper firing order
Check ignition system and fuel
injector connections. Rectify as
necessary.
Exhaust system / Catcon damaged
Check and take corrective action.
Poor acceleration or low
power
Insufficient battery voltage/charge -
test battery and charging system
Clean
and
tighten
battery
connections
Battery or charging system
component faulty. Replace as
necessary.
Obstructed air filter or air inlet
Clean or replace air filter or inlet.
Disconnected or leaking vacuum
line or vacuum leak at inlet manifold
Inspect all vacuum lines and inlet
manifold. Repair or replace as
necessary.