top of page

2008 Lexus GS450h – Engine Will Not Idle After Codes Cleared
CUSTOMER CONCERN Customer states the engine will not idle after diagnostic codes were cleared. CAUSE Clearing adaptive memory exposed throttle-plate deposits and removed the learned idle correction values. CORRECTION Remove EFI and ETCS fuses for the specified reset period, clean throttle body and perform throttle-body idle relearn. Verify stable idle operation.
bottom of page