Chery automobile Service Manual page 174

Verify that the fuel is deteriorated or
12
contaminated by water.
Verify that the fuel pressure is lower than
13
350kPa.
Close the fuel manometer valve. Connect the
ignition switch again to re-operate the fuel
14
pump in order to verify that the fuel pressure
can be established.
Open the fuel manometer valve and clamp
the fuel return pipe with the fuel tube clamp
15
to stop the fuel return in order to verify that
the fuel pressure can be established quickly.
Verify that the fuel inlet pipe has any
16
leakage or blockage.
Verify that the fuel return pipe has any
17
leakage or bending.
Connect an adapter between ECU and the
wiring harness. Then verify that there is any
voltage at the ECU's pin No.44, 45, 63, 12
and 13, and to see whether the positive
18
power supply wires connected to the above
ECU's pins and the ground wires connected
to the pin No. 3, 51, 53, 61 and 80 are
normal.
Verify that the parts of air intake system
19
have any air leakage.
Verify that the absolute pressure and
20
temperature sensor of air intake manifold has
any blockage.
Verify that the coolant temperature sensor is
21
normal.
Verify that the unsuccessful startup is due to
mechanical reasons such as excessive
22
clearance between the piston and cylinder or
due to cylinder air leakage, etc.
Yes
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G-65
Replace the fuel
Proceed to Step 18.
Proceed to next step.
Proceed to Step 17.
Proceed to next step.
Proceed to Step 16.
Replace fuel and
pressure regulator
Repair or replace the
fuel injector or fuel
pipe
Repair or replace the
fuel inlet pipe
Replace the fuel pump
Repair or replace the
fuel return pipe
Replace the fuel
pressure regulator
Proceed to next step.
Repair or replace the
wiring harness.
Repair
Proceed to next step.
Repair or replace
Proceed to next step.
Proceed to next step.
Repair or replace
Fix the mechanical
malfunction
Replace the ECU