TROUBLESHOOTING [ENGINE CONTROL FS]
1 1
LACK/LOSS OF POWER
-
ACCELERATION/CRUISE
DESCRIPTION
Performance poor under load (i.e., power down when climbing hills)
POSSIBLE
CAUSE
• Improper A/C system operation
• Air leak from intake air system parts
• EGR valve malfunction
• Erratic signal from crankshaft position sensor
• Vacuum leaks
• Spark leak from hightension leads
• PCV valve malfunction
• Restriction in exhaust system
• Inadequate fuel pressure
• Fuel leak from injector
• Intermittent open or short of mass air flow sensor, throttle position sensor and vehicle speed sensor
• Automatic transaxle malfunction
• Erratic signal or no signal from camshaft position sensor
• Purge solenoid valve malfunction
• Brake dragging
• Low engine compression
• Poor fuel quality
• Air cleaner restriction
• Improper valve timing due to timing belt jump
• Intermittent open/short in fuel pump circuit
• Fuel pump mechanical malfunction
• Fuel injector clogged
• Clutch slippage
Warning
Following troubleshooting flow chart contains fuel system diagnosis and repair procedures. Read
following warnings before performing fuel system service:
•
Fuel vapor is hazardous. It can easily ignite, causing serious injury and damage. Always keep
sparks and flames away from fuel.
•
Fuel line spills and leaks are dangerous. Fuel can ignite and cause serious injuries or death
and damage. Fuel can also irritate skin and eyes. To prevent this, always complete “BEFORE
REPAIR PROCEDURE” and “AFTER REPAIR PROCEDURE” described In this manual.
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BEFORE REPAIR PROCEDURE
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AFTER REPAIR PROCEDURE
STEP
INSPECTION
ACTION
1
Verify following:
• Vacuum connection.
• Air cleaner element.
• No air leaks from intake air system.
• No restriction of intake air system.
• Proper sealing of intake manifold and
components attached to intake manifold:
EGR valve, IAC control.
• Fuel quality:
Proper octane, contamination,
winter/summer blend.
Are all items okay?
Yes
Go to next step.
No
Service as necessary and repeat step
1
.
2
Retrieve and record any continuous memory,
KOEO and KOER DTCs.
If engine stall condition exists, retrieve
continuos memory and KOEO DTCs.
Are there any DTCs displayed?
Yes
Go to appropriate DTC test.
No
Go to next step.
3
Is engine overheating?
Yes
Go to flowchart 17 for “COOLING SYSTEM CONCERNS
OVERHEATING”.
No
Go to next step.
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Содержание MX-6 1998
Страница 1: ......
Страница 501: ...STARTING SYSTEM 3 If not as specified replace the starter interlock switch 01 19 3...
Страница 803: ...MANUAL TRANSAXLE W 6 U 5 1 5 W A C 05 15 7...
Страница 934: ...CONTROL SYSTEM CONTROL SYSTEM STRUCTURAL VIEW W6U740WA0 07 40 2...
Страница 983: ...SERVICE TOOLS 08 60 SERVICE TOOLS 08 RESTRAINTS S S T 08 60 1 08 RESTRAINTS SST 08 60 1...
Страница 1005: ...TROUBLESHOOTING POWER DOOR LOCK SYSTEM From previous page Go to next page W 6 U 9 0 1 W H 3 09 01E 7...
Страница 1168: ...SEATS 4A 4 If not as specified replace the power seat switch 2A 2B t 4B 3A 1C 1A 1F W6U913WA9 09 13 7...