Toyota/Lexus are consistent, that code would be the same across all engines. It makes sense you only get the CEL under full throttle as the ACIS isn't activated until around 4,000 rpm and at a certain minimum throttle angle.
see attached to diagnose the problem
Three and a half years later - thank you for these PDF's
This will make life easier
I've also got a code, but now I know where to start!!!
P1651 Code
in Lexus GS 300 / Lexus GS 250 / Lexus GS 430 / Lexus 450h / Lexus GS 460 Club
Posted
Three and a half years later - thank you for these PDF's
This will make life easier
I've also got a code, but now I know where to start!!!