FixVault
Home
›
Lexus
›
1998
›
ES 300
›
Repair and Diagnosis
›
Engine Performance
›
System
›
Engine Controls - Tests W/O Codes
›
Trouble Shooting
›
Poor Idling
›
Surging
Poor Idling: Surging
Check ECM power source circuit with ignition on.
Check fuel pump control circuit.