Check engine and trak off
Check engine light and lack of power due to failed mass air flow sensor
Car surges forward and it feels like the transmission is in neutral when you're gliding down the highway and it picks up again with a hiccup sensation creating a momentary stall
Periodically cleaning out the MAF sensor with a q-tip and some rubbing alcohol helps greatly with this issue. MAF's can be found online for a reasonable price as well, if needed.
After replacing plugs, wires, and coil packs (routine maintenance), I got a periodic hesitation @ 4000 rpm. After pulling and cleaning the maf sensor, every thing was fine for a few months. When my IS300 started acting up again, I replaced the sensor with a Denso maf sensor(OEM supplier)for about $70.00.
check engine light on due to MAS