Maintenance Manual for Chery·Windcloud Marelli EFI System
2). Engine rotates but fails to start when starting
Step Operation Result Solution
Yes
Eliminate failure
displayed
1 Turn ignition switch to “ON”, and check with scanner
to see if there is any failure information recorded.
No
Go to next step
Yes
Go to Step 8 2 Unplug cylinder wire and connect spark plug to make
spark plug electrode 8-10mm away from engine
body. Rotate engine with starting motor and check to
see if there is blue or white high voltage spark
(notable spark does not prove that he spark plug is in
good condition, for the resistance value of the
atmosphere differs from that of compressed air in
cylinder).
No
Go to next step
Yes
Go to next step 3 Check resistance value of high voltage wire to see if
it is normal.
No
Repair or replace
high voltage wire
Yes
Replace 4 Check high voltage wire and spark plug of each
cylinder to see if they are damaged.
No
Go to next step
Yes
Replace 5 Check the connection between ignition coil and ECU
wire harness to see if it is damaged.
No
Go to next step
Yes
Go to next step 6 Check ignition coil to see if it is in normal condition.
No
Replace
Yes
Go to next step 7 Check socket connector of crankshaft position sensor
to see if it is properly connected.
No
Connect it
Yes
Go to next step 8 Turn ignition switch to “ON” and check fuel pump
relay and fuel pump to see if they work normally.
No
Check and repair
fuel pump circuit
Yes
Go to next step 9 Connect fuel pressure gauge valve. Strap Pin 30 and
Pin 87 of fuel pump relay, start fuel pump and check
fuel pressure to see if it is around 350kPa.
No
Go to Step 13
Yes
Go to Step 12 10 Pull out fuel distributing pipe and injector together,
and unplug injector connectors from wire harness one
by one. Supply 12V voltage to injector directly from
accumulator and check if injector works.
No
Go to next step
Yes
Go to next step 11 Clean injector and recheck to see if it works.
No
Replace injector
Yes
Replace fuel 12 Check fuel to see if it is deteriorated or contains
water.
No
Go to Step 18
Yes
Go to next step 13
Check fuel pressure to see if it is lower than 350kPa.
No
Go to Step 17
14 Shut fuel gauge valve, turn on ignition switch once
Yes
Go to next step
37
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