Thanks I will try that. It's strange. The new air reg is def working idle at cold is +-1500 then when warm goes to around 900. When I turn the ac on/move steering wheel it kicks up a little. As soon as I turn off ac the rpm drop below the 900 for a sec like I wants to go to normal it returns up to 900. Im just trying to figure out if it is the chip or another sensor (fast idle or ivac) has gone bad. I didnt think I would have to adjust the idle screw by doing an injector upgrade. Trying not to mask the problem if there is one by adj the idle screw.