I looked at the suzuki, and took it to my mechanic for a check. He scanned the codes and said they were fine, but thought the car was due for a timing belt change at 60,000 miles ($300). He was right, as shown on
this link.
I drove the car and noticed the gearing was quite low, certainly not suitable for extended freeday driving, but okay around town. I'm passing on the car and will be looking for a 5 speed for me now.