I don't think My Z will go fast when the engine is cold. Throttle response is very sluggish in cold weather until oil temps near 180. Granted, my car is parked in my icy cold garage for up to 5 days b/t drives.
Still, even after the oil temps are at normal levels, I typically won't get 100% throttle response until after I've shut off the engine and started it up again -- say, after a quick stop at the grocery store. I have noticed this more often in winter than summer.
Not knowing much about cars, I've attributed this behavior to the ECU perhaps trying protecting the engine. Am I right?
I also drive a 99 Mercury Sable. That car drives the same (slowly) regardless of the conditions.
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