Changed air cleaner now wont start!

I went out and checked my fluides on my 1987 mazda 626. I then opened the airbox to check the filter, it was great. So I started the car with out the box bolted down to see if it had a different sound. It started fine. So then I went ahead and bolted everything back down. Then I went to start her up again and she turned over but did not even try to start. So then I thought maybe a sensor so I diconnected the battery for a minute then hooked it back up. It still did the same thing. Was wondering if any one had a clue what happened. Thanks.

sounds like you might have something unpluged , check and make sure all the sensors are pluged up