'95 Corolla 4A-FE, hasn't been started for 3 weeks, after that the battery was discharged so I jump started it. It didn't start easily. Now it has this problem with idle speed: when started cold the idle is low (700), after warmup it's too high (1200). There's an increase in idle RPM when I move the steering wheel.
I've been told at the dealer that the idle valve is stuck and has to be replaced (for a lot of money). Is the fast idle valve the only possible cause to this problem? If the valve is stuck, can it be somehow cleaned/lubricated?
Thanks.