View Full Version : how do i know if my combi valve is bad?

07-06-2008, 06:39 PM
So when ever i start up my car it kinda jumps around in idle and then calms down and then when i put it in gear it will fall in rpms almost too low for what i think should be normal. I already replaced my TB and MAF along the way a few weeks ago while doing general stuff to the car but what are the syptoms of the combi valve going out on me?

TIA i did search and found lots of things to do with the SAI which i learned it for cold start ups to help the cat warm up for emmissions[confused]