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1.2L REVOTRON ENGINE
14
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.
Exhaust system / Catcon
damaged
Check and take corrective action.
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.
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.
'Squeal' or 'chirping' while
engine is running.
Worn,
oil-fouled,
or
improperly adjusted engine
accessory belt.
Check engine accessory belt
condition and tension. Adjust or
replace.
Belt tensioner not properly
tightened or defective
Inspect the belt tensioners. Tighten
or replace as necessary.
'Clunking' or 'rapping' noise
from bottom end of engine
Defective piston wrist pin,
rod, or main bearings
If noise occurs after taking foot off
accelerator pedal, inspect piston
wrist pins.
If noise is constant inspect rod
bearings and main bearings for
proper clearance and condition
Replace bearings as necessary.