Mazda MX-6 1998, Руководство по ремонту

Страница: 419 / 1282

MECHANICAL [FS]
ENGINE TUNE-UP [FS]
Engine Tune-up Preparation
1. Warm up the engine to the normal operating
temperature.
2. Shift transaxle into Neutral (MTX) or P position
(ATX).
3. Turn off all electrical loads.
• Headlight
• Blower
• Rear window defroster
• Power steering
4. Verify that the battery is fully charged. (Refer to
0 1 -1 7 BATTERY INSPECTION.)
5. Connect the SSTs (NGS tester) to the data link
connector and select the “PID/DATA MONITOR
AND RECORD” function and press TRIGGER.
I . I
d i a g n o s t i c t e s t m o d e s
I
PID/DATA MONITOR AND RECORD
ACTIVE COMMAND MODES
DIAGNOSTIC TROUBLE CODE LIBRARY
SELECT ITEM ANO PRESS TRIGGER TO START
W6U110WDX
6. Select “RPM” and press TRIGGER.
7. Wait until the electrical fan stops.
8. Select “START” to begin.
Ignition Timing Inspection
1. Perform “Engine Tune-up Preparation” .
2. Verify that the idle speed is within the
specification.
Specification
MTX: 550— 850 (700 ± 150) rpm
ATX: 500— 800 (650 ± 150) rpm
3. If not as specified, adjust the idle speed. (Refer to
Idle Speed Adjustment.)
4. Connect a timing light to the high-tension lead of
the No.1 cylinder.
5. Verify that the timing mark (yellow) is within the
specification.
W6U110W24
6. If not as specified, inspect the following.
• Camshaft position sensor
• Crankshaft position sensor
• Throttle position sensor
• Engine coolant temperature sensor
• Neutral switch (MTX)
• Clutch switch (MTX)
• Transaxle range switch (ATX)
7.
If the devices are normal, replace the PCM.
Idle Speed Adjustment
1
. Warm up the engine to normal operating
temperature.
2.
Shift the transaxle into Neutral (MTX) or P position
(ATX).
3.
Turn off all loads.
• Blower motor
• Power steering
• Electrical loads (i.g, headlight, rear window
defroster)
4.
Verify that the battery is fully charged. (Refer to
0 1 - 1 7
BATTERY INSPECTION.)
5.
Connect the SSTs (NGS tester) to data link
connector.
6. Select the “ DIAGNOSTIC DATA LINK" and press
the TRIGGER.
W6U110WZ0
7. Select the “PCM-POWERTRAIN CONTROL
MODULE” and press the TRIGGER.
I . . I
PCM - POWERTRAIN CONTROL MODUl F
ABS - ANTILOCK BRAKE SYSTEM
SELECT ITEM ANO PRESS TRIGGER TO START
W6U110WZ1
8. Select “PID/DATA MONITOR AND RECORD” and
press the TRIGGER.
W6U110WDY
Specification
MTX: BTDC 6— 1 8 ' (12° ± 6°)/550— 850 rpm
ATX: BTDC 6— 18° (12° ± 6°)/500— 800 rpm
0 1 -1 0 A -1 6