car idles really low and almost stalls. Need to keep gas on for few min. Anyone know what it can be besides dirty tb? Car has build engine but it doesn't matter does it?

 

if you want to temporarily fix it you can always take a flat head screw driver and open up the tb more so that the idle is higher. but again this would only be temporary. it might not affect the idle that much but it might be enough to keep it from stalling.

also you might want to have your Fast Idle Thermal Valve checked to see if its working proporly.

mine was the opposite and its stayed open all the time so my idle was at 2500 to 3000! but that was in combination with a tb plate that stuck but good luck.