Throttle jumps up and down any suggestions

2008 g35x Sedan

I cleaned the maf sensors cleaned the throttle bodies and it helped while the weather was still 60-70 degrees had no issues Now that it’s hotter out the rpms started jumping again so I took everything apart and changed the spark plugs then it started jumping 500-1500 so I cleaned the maf again and it now jumps from 500-1000 I unhooked the negative battery cable and reset the throttle. What should I change or check next