yeah they scanners arent to puter arent to advanced they can handle any codes it can throw

 

well........i went out to my gf's place, and uh, my water pump went out lol. Getting her fixed tomorrow, as for the 3k rpm problem, gonna ask the mech who does the water pump to run the codes and look at some stuff.

 

I had a similar problem and no check engine. Turned out it was my fuel pump. It runs good when cold, because the pump is cool and spins freely. Once it runs for a little and warms up, F/P drops enough to cause your engine to lean out, hence why is bucks around 3000 rpm.