Mazda 626 - Idle Speed Adjustment

ENGINE TUNE-UP
• If not as specified, inspect the following:
— CMP sensor (See Section F.)
— CKP sensor (See Section F.)
— TP sensor (See Section F.)
— ECT sensor (See Section F.)
— Neutral switch (MTX) (See Section F.)
— Clutch switch (MTX) (See Section F.)
— TR switch (ATX) (See K2-30 TRANSAXLE
RANGE (TR) SWITCH INSPECTION.)
IDLE SPEED ADJUSTMENT
Except for GF4A-EL Models
Using the SSTs (NGS tester)
1. Perform “ENGINE TUNE-UP PREPARATION”.
2. Verify that the RPM PID is within the specification.
3. If using the SST (System selector) to turn on the |
test mode, perform as follows:
(1) Connect the SST to the DLC.
(2) Set the system select switch to position 1.
(3) Set the test switch to SELF TEST.
SYSTEM SELECTOR
A O 0 0 1 9 9 A 0
TEST SW
SELF
TE ST
8 ^ ~ 7 < ß
SYSTEM SELECT M0NIT°"
49 B019 9A0
Specification
600— 700 (650 ±50)rpm
3. Press SETUP (key 8) and turn the test mode on.
4. Press CANCEL.
5. Press START.
Caution
• The TAS is set at the factory and must not
be adjusted. Any adjustment will negatively
affect the engine performance.
6. Verify that the RPM PID is within the specification.
• If not as specified, adjust the idle speed by
turning the AAS.
Specification
500—750 rpm
Caution
• Connecting the wrong DLC terminal may
possibly cause a malfunction. Carefully
connect the specified terminal only.
4. If using a jumper wire to turn on the test mode,
perform the following:
(1) Short the DLC terminal TEN to body GND
using a jumper wire.
JUMPER WIRE
/_
I
TEN
/
I
I
I I I I I
7. Press SETUP (Key 8) and turn the test mode off.
8. Press CLEAR to clear previously selected items.
9. Disconnect the SSTs (NGS Tester).
Not using the SSTs (NGS tester)
1. Perform “ENGINE TUNE-UP PREPARATION”.
2. Verify that the RPM PID is within the specification.
Specification
600—700 (650 ± 50)rpm
Caution
• The TAS is set at the factory and must not
be adjusted. Any adjustment will negatively
affect the engine performance.
5. Verify that the idle speed is within the
specification.
• If not as specified, adjust the idle speed by
turning the AAS.
Specification
500—750 rpm
F1-22