computer on pt cruiser

Here's a little heads up..... My car broke down in the drive way of this shop when I went to get my tire fixed. I was charged $700 for a repair on the computer that I later learned I could have COMPLETELY REPLACED for $330 The next day on my way home from work the check engine light came on. Surprisingly he told me what was wrong before he ever even popped the hood? Psychic or sabotage??? Hmmmmmm I wonder. For this new problem that mysteriously appeared the very next time that I drove it after he worked on it, I was quoted a price of $150, for a part that we purchased from Autozone for $8.99, and was replaced in about 15 minutes.....The car left the drive way after over $700 in repairs, and died in the next door neighbors driveway the next day. We were offered no warranty on the work that Jimmy did, we didn't even receive a receipt. If you break down in Ennis Texas PLEASE PLEASE RUN don't walk RUN as fast and as far as you can in the other direction from this man and his shop so that you don't get taken the way we did. I had only minor repair issues with this vehicle prior to this, and would NEVER have used anyone except my regular mechanic work on it except he was out of town when this happened. I have never had an experience of taking a car to a mechanic and it come back in WORSE condition than when we sent it in. I honestly 100% believe that this man not only totally me on the repair, but also tamper with my car thinking I would be a sucker and bring it back to him to do the repair thereby putting the safety of me my husband and our six small grandchildren at risk. RUN!!RUN!! RUN!!! anywhere but here I wouldn;'t take my granddaughters Barbie car in to this guy to get fixed.