vvtl-i not kicking in??

[01 Spectra GT-S]

my vvtl-i is not kicking in. Is it because I use 92 octane?? cuz i never had anything below 92 in my car. and I only felt the vvtl-i once.

[DaileyDog]

was the car warmed up sufficiently? engine won't lift if it's cold.

[01 Spectra GT-S]

yes, my car was all warmed up...