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1.2L REVOTRON ENGINE
9
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
manifold
absolute
pressure (MAP) sensor signal
input.
Check for leakage at sensor.
Perform diagnostic test.
Engine
idles
erratically
Disconnected or leaking vacuum
line or vacuum leak at inlet
manifold.
Inspect
all
vacuum
lines
and
connections. Repair or replace as
necessary.
Faulty ETC unit.
Perform diagnostic test. Replace as
necessary.
Incorrect valve / ignition timing.
Check timing system components and
repair or replace as necessary.
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.
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.