Stuck Throttle

[x703jko]

I have a 1998 RAV4 (4WD, 4 Door). Yesterday while driving at highway speeds the engine began exhibiting what appears to be a stuck throttle if I rev beyond 3000 RPM.

I don't think the throttle butterfly or the cable is actually sticking because the butterfly appears to return to the idle position when I release the gas pedal.

Hence, I suspect a vacuum leak or something similar.

I'm going to read codes out this weekend.

In the meantime, can anyone advice me on what they think the problem may be?

Thanks

Jeff

[choppermike]

On my Rav 4 the throttle stick at idle if I don't keep the throttle body clean. About every 5000 miles I take off the intake boot and take a rag with a little carb cleaner on it and clean all around the butterfly valve with the valve open. Reach way in there and clean out all that crud, works fine then..

[Badboyzz]

Having a problem with the idle going up too. It tripped a code in the ECU. How do i get the codes from there??? Can i jumper something or is there a way to find out the codes without going to a dealer????