LEMON Manuals
: Even more car manuals for everyone: 1960-2025
Home
>>
Lexus
>>
1998
>>
SC 400
>>
Repair and Diagnosis
>>
Engine Performance
>>
System
>>
Engine Controls - Tests W/O Codes
>>
Trouble Shooting
>>
Poor Idling
>>
Surging
April 5, 2026:
LEMON Manuals is launched!
Read the announcement.
Poor Idling: Surging
Check ECM power source circuit with ignition on.
Check fuel pump control circuit.