update.:: problem still exist. i have found that upon cold start engine is a tad rough for a minute or 2 then it smooths out. also blipping the throttle there is a very slight stumble before rpms pick up. strangely enough unplugging the grey TPS plug helps both of these considerably. throttle response when blipping is crisp and immediate like it should be. the idle is still dipping down to about 500 then leveling off after revving though..do u think my tps is going bad..?