I have checked tps it seams to be working, because if i adjust it in any other direction then the setting that it ran with before engine swap, and if i change it the rpms go through the roof and do not fall. I'm also not sure how to test the trans codes. i used a code reader and no codes for the trany can up. is there another way to test it, and if so can you please give me some instruction how to do this. Sorry i forgot to mention the swap i did was the block and heads only. did not take anything off the intake or anything else that i did not have to