Doesnt like to run when its hot. It's a 2005 nissan armada.

What is your question?

On hot days; temps between 90-100°; car cuts back and bucks until I can get over 20 mph. I have to give it gas and let off until it gets there. Can cut it off for a few secs then it will go. Drive it a while does the same thing. I can hear it backfire in the throttle body while this goes on.

What makes this problem better or worse?

When it's real hot, after the motor warms up. Doesn't like to idle.

How long has your 2005 Nissan Armada had this problem?

All summer.