Yep, depending on temp out mine does the same. Alttle un-nerving when I get on the highway right after leaving work and the cars is running over 3K.
05 Matrix XR 4WD and 03 Vibe GT
"If you want Government to solve your problems, then you are the problem!" BMSR
Trix MODS: TRD SC GONE!, SRI, Vibrant/Magnaflow Cat-back, Alutec Lightweight Crank Pulley
GT MODS: Minor stuff so far.