Here it is ... I'm working on my lexus sc300. I've been replacing sensors and parts (IACV, PCV, throttle body gasket, vacuum lines, distributer, wires, plugs, tps) and have played around with the intake a little. My car is still reving high and sometimes blows white clear-ish smoke. Any help would be awsome IFO is coming to my town in less than a month and i need my baby alive and well lol

 

It has happened...
https://www.clublexus.com/forums/per...-cleaning.html
https://www.clublexus.com/forums/per...gs-change.html

One thing to ask you...did you mess around with the MAF, (AFM in your case since it's a 92). Did you try and clean it or spray it with anything?

 

i didnt spray it but i did wipe it down...i wiped everything down... when i went to take the throttle body off i cleaned everything.. but ive only done this trying to fix the issue.....

 

I dont know what its called but its a little vacuum canister attacked where the tps is located..can that go bad?.....

 

thats the only thing i think i might of got somthing in.....

 

probably an air leak on one of the hoses check the pcv hose it likes to crack after a long time. also valve cover gaskets can be a leak. whitish smoke makes me think coolant, so make sure those coolant lines on the throttle body went on right. if you spilled some its normal for a little bit to burn off then it should stop. the high idle though sounds like an intake leak.

 

this makes some since imma look over these

 

loose connections on the tps plug and i did have a vacuum leak...it stopped smoking so im guessing it was the coolant from the throttle body