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1.2L REVOTRON ENGINE
10
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.
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.
Improper grade or contaminated
fuel
Flush 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.
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.
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.
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.