Check Engine Light On problems of the 1997 Honda Civic

I had the checked at kolbe Honda when the check engine light came on. I thought the porblems related with the check engine would be covered by mfg warranty it was not. After I have learned that three sensors defected as found in diagnostic process. I went on to replace all three sensors and the check engine light still comes on. Something is not right, I do plan on making a appointment with kolbe to further more on diagnostic and determine if this is covered by manufactory recall or warranty coverage. I also have a transmission problem, after 45 minutes of driving on city streets. The transmission starts to slip or hesitate at take off, from second gear to fourth shift speed also changes. Like in the beginning the shift patterns appears normal, 1st gear (0mph to 25mph) 2 gear (25mph to 35mph) 3 gear (35mph to 45-50 mph) 4 gear (direct drive), after 45 minutes of driving it is reduced by 10mph at gears. I can't afford rental car if the dealership requires to hold the vehicle for more than one day. My wife and I and my kids carpool in this car daily, it is our only transportation. Dt.