u/Fabulous-Strain2402

2006 G35x throwing P1757 and P1759.
Car barely accelerates from a stop and the RPMs won’t really go past 2k while driving. Reverse works perfectly normal though.
Also when I try to manually downshift sometimes it doesn’t react right away, then like 2 seconds later it suddenly accelerates.
If I clear the codes the car drives better for a bit before it comes back.
Anyone know what usually causes this?