ok so i have a new gsr swap on my 98 ls. turned on fine but now its in limp mode and wont pass 3000 rpm. it reads 2 cel codes, they are iat circuit high and tps circuit low. i am using a gsr harness so i didnt have to worry about knock and vtec. only thing that was re-wired was the harness from the ecu to the stru tower. the things that were wired was pcs, vtec solenoid, knock, and vtec pressure switch. i also am running a skunk2 intake manifold, dont know if the butterfly system from the stock one would cause the problem. i changed the ecu to see if it was fried but it does the same thing. please help i am just at a loss and i have no more ideas.