Well heres the deal i decided to put my intercooler and piping on this weekend ,went and test drove it and no piping blew off. The check engine light came on for p0121 throttle position sensor A circut range performance problem,and the idle is surging. So i come on here and searched it found a few good threads, checked the piping all of my clamps were tight intake was tight no vacume leaks. I started the car and unpluged the TPS and the idle changed so I dont think thats what the problem is. let me know if you have any ideas

 

bump anyone know?

 

Did you unplug the MAF without resetting the ECU? Try removing the battery terminal to see if your code goes away. Alternatly you can remove the fuse under the hood for the ECU.

 

^^^I would try that, unplugging the batt usually helps....

 

yep reset ecu and took battery cables completly off to reset it too..

 

Unplug and replug in the MAF sensor and reset the ECU again.

 

well just done that at lunch same idle!!!

 

bump any more ideas

 

it's the throttle sensor.

 

so i need a new TPS?

 

bump any more tests before i go buy a TPS

 

well tested the TPS with the dmm and it has good restiance so the sensor itself isnt bad...any other ideas?

 

Were you running the Tial BOV before the problem started?

 

nope the stock one!!!!

 

Have you done a boost leak test?