i have a 1994 ram 1500 with a 3.9. today i changed the plenum gasket. after i got everything back together it was idling rough. i unhooked the two vacuum lines on the passenger side of the intake manifold next to the pcv port. it seems to run better with the vacuum lines unhooked . what could cause this? map sensor? i checked the coolant temp sensor. changed it after i noticed it was cracked. changed the cap and rotor. checked firing order. still idles really low. the idle kinda of goes up and down a little. almost acts like it wants to stall out.
any suggestions?

 

One thread is enough. Keeps all the information in one place. Have a bunch of em makes it difficult to keep track of. Closing this one.