Daewoo CIELO EURO III, Manual

Page: 210 / 603

1F –42 ENGINE CONTROLS
DAEWOO T-154 BL2,3
Engine Cranks But Will Not Run (Cont’d)
Step Action Value(s) Yes No
45
1. Check the fuel filter for a restriction.
2. Inspect the fuel lines for kinks and restrictions.
Is the problem found?
–
Go to Step 46 Go to Step 47
46
1. Replace the fuel filter and/or the fuel lines as
needed.
2. Connect a fuel pressure gauge.
3. Crank the engine.
Is the fuel pressure within the value specified?
283-324 kPa
(41-47 psi)
Go to Step 3 Go to Step 47
47
1. Disconnect the vacuum line from the fuel
pressure regulator.
2. Inspect the vacuum line for the presence of fuel.
3. Inspect the fuel pressure regulator vacuum port
for the presence of fuel.
Is any fuel present?
–
Go to Step 50 Go to Step 51
48
Check the fuel for contamination.
Is the fuel contaminated?
– Go to Step 49 Go to Step 65
49
1. Remove the contaminated fuel from the fuel tank.
2. Clean the fuel tank as needed.
Is the repair complete?
–
Go to Step 3
–
50
Replace the fuel pressure regulator.
Is the repair complete?
– Go to Step 3 –
51
1. Remove the fuel pump assembly from the fuel
tank.
2. Inspect the fuel pump sender and the fuel
coupling hoses for a restriction.
3. Inspect the in-tank fuel filter for a restriction.
Is the problem found?
–
Go to Step 52 Go to Step 43
52
Replace the fuel pump sender, the in-tank fuel filter,
and/or the fuel coupling hoses as needed.
Is the repair complete?
–
Go to Step 3
–
53
1. Turn the ignition OFF.
2. Disconnect the electrical connector at the fuel
pump.
3. Connect a test light between the fuel pump
connector terminal 3 and a known good ground.
4. Turn the ignition ON.
5. With the ignition ON, the test light should light for
the time specified.
Is the test light on?
2 sec Go to Step 54 Go to Step 55
54
Repair the open wire between the fuel pump con-
nector terminal 2 and ground.
Is the repair complete?
–
Go to Step 3
–
55
1. Turn the ignition OFF.
2. Disconnect the fuel pump relay.
3. Connect a test light between the fuel pump relay
connector terminal 86 and ground.
4. Turn the ignition ON.
Is the test light on?
2 sec Go to Step 56 Go to Step 62