FastBackDan

Ok, I have a 05 auto. I bought a SCT tunner from a good guy on here(name held) I will not be able to connect the company here from work thats why I'm holding his name=) Anyway My car started last night acting funny. In OD with the A/C on i was going to pass a car and switched it out of OD and when it downshifted it fell on it's face shifting from gear to gear all most like it was hitting the rev limiter. Today I had the A/C on again with the TCS off and OD off. I hit it and it went threw the gears and 1-2 fell alittle and 2-3 was ok. Then when I went to slow down the car would not=( it held the RPM at 4K??? Then drop down to the normal baseline. I haven't done it with the A/C off to see if it's the problem. I will try to reload the factory tune then upload the tune again. any input would be great. I'm running a 93 tune setup for a K&N filter.