Just had some head gaskets done to my car.. the guy got it all back together ran great for like 5 miles. Now for some reason whenever it goes into drive or reeverse it is boggy and cant even burn out or go! If its in park it idles fine and seems to rev fine. What could this be? anything to do with a vaccum lines or maybe the sensor or on the drives block in the back?

 

i noticed the the egr valve pigtail wires were broke a few days ago so i twisted them back to the wires they connect to but it didnt help..would this cause it? these dont have to be soldered right?

 

If you have acess to a scanner that would be a good place to start,any codes?Check the air intake elbow to make sure its completely on the TB.Also check for any rips or tares.

 

A faulty electrical circuit for the EGR valve vacuum solenoid will set a code. And it will not cause the problems you are having. If the EGR valve was stuck open it might, but that would cause a rough idle and stalling. You indicate it idles fine.

What part are you referring to, when you posted " maybe the sensor or on the drives block in the back?"

Check the fuel pressure. And of course, as was indicated in the post above, scan it for codes.