stumbling idle when turning steering wheel in neutral and other questions

[nyckanny]

My idle stumbles up and down when the cars in neutral and the steering wheel is turned. iacv vavle or what?

also what is the maintenance period for the O2 sensor?

its uncommon for me to get 300 mile per tank

95 base

ken

[pmkls2]

well, Im not sure what factory recommendations are for o2 sensors but most people say 12k miles or 12 months. it sounds to me like you could use an o2 sensor (possibly complete tune up) and clean the iacv and your mileage wil probably get better and the idle too