I have an 01 zx3. it has been sitting for the past few months. I went to drive it the other day, it idles fine. Seemed to be going well. When i push down the accelerator, nothing. Dosent stall or anything, just seems to hold a steady slow acceleration. maybe a slight hesitation. It has an auto trans. If i shift it manually it runs great. picks up real nice. any sugestions would be appriciated.