Isuzu 1999 RODEO Workshop Manual page 1331

6E2–88
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
Step
4 1. Ignition "OFF," install a fuel pressure gauge at the
test fitting on the fuel supply line in the engine
compartment. (Use a shop cloth to absorb any fuel
leakage while making the connection.)
2. Ignition "ON," observe the fuel pressure.
Is the fuel pressure within the specified values, and
does it hold steady?
5 Is any fuel pressure indicated?
6 Install the switch box J 39021-2 at the injector test
connector and activate an injector.
Did the fuel pressure drop when the injector was
activated?
7 Install an injector test light at the #2 cylinder injector
harness connector (or install J 39021-65 test light to the
the injector test connector).
Does the light blink when the engine is cranked?
8 1. Ignition "OFF."
2. Disconnect the 6-pin connector at the ignition coil.
3. With a test light to B+, probe each of the 6 exposed
ignition module pins, one at a time, while the engine
is cranked. (Use the gray narrow METRA–PAK
flexible female connector from the J-35616 kit to
make the pin accessible.)
Does the light flash at each pin when the engine is
cranked?
9 1. Remove the 5-pin connector at the ignition coil.
2. Ignition "ON."
3. Use a test light at the harness connector to verify
that the module is being supplied with B+ and
ground.
Was a problem found?
10 Repair the open ignition feed circuit or ground circuit to
the ignition coil.
Is the action complete?
11 Repair the ignition module.
Is the action complete?
12 1. Reconnect the ignition coil connector.
2. Remove the electrical connector from each coil.
3. With a test light to B+, probe each of the coil
connectors at the wire which runs to the ignition
module. (Wire color will match the wire color at the
ignition module 6-pin connector – green, or green
with a tracer.)
Does the light flash at each coil connector when the
engine is cranked?
13 Check for an open circuit between the ignition coil.
Is the action complete?
Engine Cranks But Will Not Run (Cont'd)
Action Value(s) Yes
285-375 kPa
(43-55 psi) Go to Step 6
Go to Fuel
System
— Electrical Test
— Go to Step 7
— Go to Step 8
— Go to Step 12
— Go to Step 10
— Verify repair
— Verify repair
— Go to Step 14
— Verify repair
No
Go to Step 5
Go to Fuel
System
Diagnosis
Go to Step 18
Go to Step 24
Go to Step 9
Go to Step 11
—
—
Go to Step 13
—