'00 GP GT. It's still a minor problem so hopefully I can get this fixed before it gets worse. I've noticed a small fluctuation in the RPMs while the car is either in drive or idling. I'd say it's probably no more than a few hundred RPMs, but if I'm cruising down the highway it's enough to be noticeable. It doesn't happen all the time, just here and there. Seems to do it more than it used to though. Happens with or without cruise control engaged. As far as I can tell it's only a problem when I'm going a constant speed. Only increases RPMs, doesn't decrease.
I'm on a tight budget so I'd like to start with the cheapest possibility, lol. I've read the TPS might be the cause, but that seems to start at around $40 for a new one. Could be worse I guess.
