Isuzu 1999 RODEO Workshop Manual page 1353

6E2–110
RODEO 6VD1 3.2L ENGINE DRIVEABILITY AND EMISSIONS
Evaporative (EVAP) Emissions Canister Purge Valve Check
Step
1 1. Ignition "OFF."
2. Ignition "ON," engine "OFF."
3. At the throttle body, disconnect the hose that goes
to the pump solenoid.
4. Using a hand vacuum pump with an attached
vacuum gauge J 23738-A, apply vacuum (10" Hg or
34 kPa) to the solenoid.
Does the solenoid hold the vacuum?
2 1. Disconnect the solenoid electrical connector.
2. As in Step 1, apply vacuum (10" Hg or 34 kPa) to the
solenoid.
Does the solenoid hold the vacuum?
3 1. At the throttle body, put a cap over the vacuum port
where the hose was disconnected for testing. This
is to prevent a vacuum leak when the engine is
started.
2. Ignition "OFF."
3. Install the Tech 2.
4. Apply vacuum to the purge solenoid with the hand
vacuum pump.
5. Start the engine, run at 2500 RPM.
6. Using the Tech 2, select F0: Engine, F3: Misc.
Tests, F0: EVAP Purge.
7. Turn the purge solenoid "ON."
Did the vacuum drop when the purge was turned on?
4 Check for a short to ground in the RED/BLU wire.
Is there a short?
5 Repair the short to ground.
Is the action complete?
6 Replace the PCM.
IMPORTANT: The
programmed.
Powertrain Control
procedures.
And also refer to latest Service Bulletin.
Check to see if the Latest software is released or not.
And then Down Load the LATEST PROGRAMMED
SOFTWARE to the replacement PCM.
Is the action complete?
7 Replace the faulty purge solenoid. Refer to On-Vehicle
Service, EVAP Canister Purge Solenoid.
Is the action complete?
Action
replacement PCM
Refer to On-Vehicle Service in
Module and Sensors
Value(s)
—
—
—
—
—
must be
for
—
—
Yes No
Go to Step 3 Go to Step 2
Go to Step 4 Go to Step 7
Go to Step 8 Go to Step 9
Go to Step 5 Go to Step 6
Verify repair —
Verify repair —
Verify repair —