My 87 4runner has a rough idle, kinda like a bad plug, and no power, like a filthy air filter and fuel filter when it is raining. I don't even have to drive it for these problems to start. If it is sitting out in the rain it has these problems when I start it, when the rain quits, by the next day everything is fine. The plugs, wires, rotor, and dist. cap, air and fuel filter, O2 sensor are new, and TPS 2 years old. Any ideas? TIA. Robert

Last edited by tortis; 07/05/07 10:08 PM.