Isuzu 1999 RODEO Workshop Manual page 730

Evaporative (EVAP) Emissions Canister Purge Valve Solenoid 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 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 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 command the purge solenoid ON.
Did the vacuum drop when the purge was turned on?
4 Check for a short to ground or open in the wire between
the solenoid and the PCM.
Is there a problem?
5 Repair the faulty wire.
Is the action complete?
6 Replace the PCM.
IMPORTANT: The
programmed. Refer to On–Vehicle Service in
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?
RODEO X22SE 2.2L ENGINE DRIVEABILITY AND EMISSION
Action
replacement PCM must
Module and Sensors
Value(s)
— Go to Step 3
— Go to Step 4
— Go to Step 8
— Go to Step 5
— Verify repair
be
for
— Verify repair
— Verify repair
6E1–103
Yes No
Go to Step 2
Go to Step 7
Go to Step 9
Go to Step 6
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