Hello all, I have looked through different forums, but no one seem to have this problem. I have a 99 RX 300 with 100,000 miles. The exhaust gasket between the downpipe and the cat went bad for about 3 months, I just replaced it. The car is quiet once again :)
But, here's the problem... during part throttle... the acceleration is normal, but if I floor the gas pedal... the power would suddenly decrease and the acceleration becomes sluggish... if I let go half-way, the power comes back....
What can be the problem? Please help!