02 Maxima Changed Spark Plugs And Car Will Not Start

I have an 02 nissan maxima with 126000 miles on it. I just changed the spark plugs on it the other day and started it up and it sputter for a little bit and then everything started running normally. I drove it to my cousins house which is about 30 minutes away and the car was driving with great performance. I get to my cousins and let it sit for about 20 minutes and then get ready to leave and it will not turn over. It tries to start for about 8 seconds and then finally turns over. I rev it up and notice that my RPM gauge is not working. I turn it off and turned it on again and hold the key to the start position for another 8-10 seconds and it turns over but there is no throttle response and it turns off.

I took everything off and checked the spark plugs to make sure they were secure and i also checked the spark plug wires. I have never had problems with the car. I also used the same exact spark plugs that were in the car before.

HELP!

Thanks!