Isuzu 1999 RODEO Workshop Manual page 712

Engine Cranks But Will Not Run (Cont'd)
Step
20 Replace the coil–to–spark plug secondary ignition wire
and any other secondary wires which exceed the
specified value.
Is there still a problem?
21 1. Remove the spark plugs from all cylinders.
2. Visually inspect the spark plug electrodes.
3. Replace any spark plugs with loose or missing
electrodes or cracked insulators.
Did your inspection reveal any spark plugs exhibiting
excessing fouling?
22 Verfiy repair.
Attempt to start the engine.
Is there still a problem?
23 1. Ignition OFF, install a fuel pressure gauge at the test
fitting on the fuel supply line in the engine
compartment.
CAUTION: Use a shop cloth to absorb any fuel
leakage while making the connection.
2. Check the engine and observe the fuel pressure.
Is the fuel pressure within the specified values, and
does it hold steady for 2 seconds?
24 Is any fuel pressure indicated?
25 1. Install switch box J 39021–2 and J 39021–90 at the
injector test connector.
2. Activate an injector.
Did the fuel pressure drop when the injector was
activated?
26 Pressurize the fuel system using the ignition ON and
use the injector switch box to test pressure drop for
each injector.
Was there a pressure drop when each injector was
activated?
27 1. Remove the switch box and install an injector test
light J 39021–45 at the injector test harness
connector.
2. Crank the engine.
Are any of the lights blinking when the engine is
cranked?
28 1. Raise the vehicle and disconnect the CKP sensor
harness.
2. Ignition ON.
3. With a test light to ground, probe the CKP ignition
feed harness terminal.
Did the light illuminate?
RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION
Action Value(s) Yes
10,000 W per
Go to Step 21
foot
Correct the
fouling
condition
—
Go to Step 23
—
285–375 kPa
Go to Step 25
(43–55 psi)
Go to Fuel
System
Electrical Test
—
Go to Step 26
—
Go to Step 27
—
Go to Step 33
—
Go to Step 29
—
6E1–85
No
Verify repair
Go to Step 33
Go to Step 22
Go to Step 24
Go to Fuel
System
Diagnosis
Go to Fuel
System
Diagnosis
Go to Fuel
System
Diagnosis
Go to Step 28
Go to Step 30