Have a 2000 Acura Integra Type-R and the mechanic just found out the harmonic stabilizer/whatchamacallit attached to the end of the crank shaft ,,,has frozen. Bummer, in only 7-8 years. It is a few hundred $$$ dollars to fix !! Also beware that if the rubber timing belt breaks inside the engine, it will cause the engine to destroy itself, unlike some Toyotas like my old regular gas MR-2 that was SOOO FUN TO DRIVE,,,that keep the valves and pistons in synchrony until the engine stops. That's $$$$$ thousands in expensive bad design and poor product !! The mechanic says he sees frozen units on Acuras often. I have also replaced the oxygen sensors/ fuel mix sensors on the bottom of the car --2 at $250 each-- twice, which is too many times in my book. The mechanic suggests that the CPU controlling the gas and air mixture may be at fault. And that computer chip is like $800 buckeroos, suckers !!