We replaced all four o2 sensors. Car starts better. But now won't accelerate . What else could it be. Car sat for three years outside in az . Did oil change,spark plugs,gumout in gas tank twice. Any opinions would be appreciated. New to all this learnin!

 

Wont accelerate??
Does the Transmission shift in reverse or Drive?
Does the Rpm needle move when you step on the accelerator?

 

Yes it goes in reverse and drive. But won't accelerate but verrrry slowly. Rpm goe upto about 4 when in park. Some one said probably airtake manifold gasket etc. Getting that done tomorrow. Hope that's it.