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1.2L REVOTRON ENGINE
12
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.
Clogged
or
faulty
fuel
injector(s)
Check fuel injector operation.
Replace as necessary.
Incorrect valve/ignition timing
Check timing system components
and repair or replace as
necessary.
Improper firing order
Check ignition system and fuel
injector connections. Rectify as
necessary.
Engine misfires
Disconnected
or
leaking
vacuum line or vacuum leak at
inlet manifold
Inspect all vacuum lines and inlet
manifold. Repair or replace as
necessary.
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.
Incorrect crank angle signal.
Check sensor gap and adjust to
1.0 ± 0.4mm
Improper firing order
Check ignition system and fuel
injector connections. Rectify 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.
4. Engine Noise
Condition
Possible Cause
Remedy
Engine 'pings' or 'knocks' while
accelerating or travelling uphill.
Improper grade of fuel
Fill fuel tank with a minimum BSIV
Fuel
Spark plugs excessively worn
or gapped improperly.
Inspect spark plugs. Replace if
worn.
Incorrect valve/ignition timing
Check timing system components
and repair or replace as necessary.
Excessively worn camshaft
Inspect camshaft lobes and run-out
for excessive wear. Replace as
necessary
Fuel filter if clogged.
Replace the fuel filter.