First is the thermastor the sqaure connector with that the vacuum lines attach to? Second Does the Egr vacuum line come directly off the H pipe? I know you might ask why don't you just look at your car and see for yourself. Well I bought this car with a smog pump delete and When replacing my H pipe I noticed There's nothing comming off the the pipe but there's a spot for a hose it's plug. I guessing this is a EGR delete of some sort. Now to bring everyone up the speed I'm having idle problems again and one of my codes is 94/Thermastor. Here's my confusion I know are plenty of EGR deleted and smog pump deleted systems without idle malfunction. Is there anything I need to do when deleting egr and smog pumps to make them run smoothly Do I need to cap the Egr hose nipple off? Any help would be great. I'm also cleaned the Egr valve and the IAC./ swapped both with know good ones. One time I ran codes and got one ACT and ECT. I hear these cause bad idle and stalling when cold? I plan on changing them Thursday because they're pretty cheap.