MULTIPORT FUEL INJECTION (MFI) DIAGNOSIS
TSB Revision
MULTIPORT FUEL INJECTION (MFI) <3.0L>
13B-340
STEP 1. Using scan tool MB991502, check actuator test
item 10: EGR solenoid.
CAUTION
To prevent damage to scan tool MB991502, always turn the
ignition switch to the "LOCK" (OFF) position before con-
necting or disconnecting scan tool MB991502.
(1) Connect scan tool MB991502 to the data link connector.
(2) Turn the ignition switch to the "ON" position.
(3) Set scan tool MB991502 to the actuator test mode for item
10, EGR solenoid.
•
An operation sound should be heard and vibration
should be felt when the EGR solenoid is operated.
(4) Turn the ignition switch to the "LOCK" (OFF) position.
Q: Is the solenoid operating properly?
YES :
It can be assumed that this malfunction is intermittent.
Refer to GROUP 00, How to Use Troubleshooting/
Inspection Service Points
NO :
Go to Step 2.
STEP 2. Check connector B-31 at the EGR solenoid for
damage.
Q: Is the connector in good condition?
YES :
Go to Step 3.
NO :
Repair or replace it. Refer to GROUP 00E, Harness
Connector Inspection
. Then go to Step 12.
AKX01177
16 PIN
MB991502
AB
ACX02514
AN
EGR
SOLENOID
VALVE
CONNECTOR: B-31 <WITHOUT VARIABLE
INDUCTION SYSTEM>
AC106190AD
EGR SOLENOID
VALVE
CONNECTOR: B-31 <WITH VARIABLE
INDUCTION SYSTEM>