Maintenance Manual for Chery·Windcloud Marelli EFI System
12). Low rotating speed or engine flameout during acceleration
Yes Eliminate failure
displayed
1 Set ignition switch in “ON”. Check with scanner
to see if there is failure information record.
No Go to next step
Yes Go to next step 2 Check if air filter is smooth.
No Replace
Yes Go to next step 3 Make engine run at idle speed, and check to see
if rotating speed is normal when idling.
No Refer to entry of
idle speed failure
for repair
Yes Go to next step 4 Make engine run at idle speed, and check to see
if intake pressure is between 35-55kPa.
No Overhaul
Yes Go to next step 5 Make engine run at idle speed, and check to see
if ignition advance angle is normal after coolant
temperature reaches normal value.
No Adjust ignition
advance angle
Yes Go to next step 6 Connect fuel pressure gauge valve. Strap the
30# and 87# pins of fuel pump relay to make
fuel pump work, and then check if fuel pressure
is at about 350kPa.
No Go to step 10
Yes Go to step 9 7 Provide 12V voltage directly from accumulator
to injector with special connector, and check if
injector is working in good order.
No Go to next step
Yes Go to next step 8 Recheck injector to see if it is working in good
order after cleaning.
No Replace injector
Yes Replace fuel 9 Check if fuel is deteriorated or contains water.
No Go to step 15
Yes Go to next step 10
Check if fuel pressure is lower than 250kPa
No Go to step 14
Yes Go to next step 11 Shut down fuel gauge valve. Switch on ignition
switch again to make fuel pump work once
more, and check if fuel pressure is established.
No Go to step 13
Yes Replace fuel
pressure regulator
12 Turn on fuel guage valve, clamp fuel return pipe
with fuel return interceptor to ensure no fuel
return, and check if fuel pressure is formed
rapidly.
No Repair/ replace
injector or fuel
pipe
Yes Repair or replace
fuel inlet pipe
13 Check if leakage or clogging occurs in fuel inlet
pipe
No Replace fuel pump
14 Check if fuel return pipe is blocked up or bent. Yes Repair or replace
fuel return pipe
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