Hi, i did a valve cover change and also cleaned the upper intake plenum and throttle body and IAC valve. I took apart the intake plenum and disassembled the vias components enough so i could clean the plastic intake plenum. I thoroughly cleaned the plenum and after it was very clean i put it all back together and also the EGR valve. After putting everything back together the car would not idle on start up and i had to use the accelerator to keep rpm high to run. Basically car would not idle and there are no codes. Being that i did not remove the IAC from the throttle body while cleaning and only soaked the bypass cavity with throttle body cleaner and after some reading on the internet i bought a new IAC valve and also took the ECM out and took the cover off and inspected the circuit board for melted or burned areas and it looked fine. I changed the IAC valve and put it back together and ran the car and car will not idle and once warm will hold various rpms after moving the throttle. I want to try a IAC reset or relearn procedure but have not found a good how to video or stepson internet specific for my car. there are none or never were codes. Car ran fine before i took everything apart and changed valve cover gaskets and disassemble all these components. I think since i meticulously put everything back together properly i might have hurt the original IAC valve with so much throttle body cleaner and so i elected to change it. I am looking for the IAC relearn steps i can do at home without a tester.
Jan 3, 2017 at 7:31 PM