1988 350 TPI. I was yanking the air injection stuff, and I have a problem. Cruise speed when warm, the car has a stumble. Idles and drives ok when cold. I think something got disconnected in the back of the motor compartment. The EGR solenoid sits beneath the coil, and has a 2 vacuum plug on the front, and an electrical connection on the back. It also has what appears to be another vacuum connection, but I can not find what goes there. HELP!!!

Any other ideas what the hell i did, please!!!

 

I think it might be the one under the throttle body.

 

The EGR control valve has 2 vacuum lines on one side, and a vacuum VENT on the other (near the 2-wire harness connector.) This is to release the vacuum so that the EGR valve will close when the solenoid turns of. It's not supposed to hook to anything...and don't cap it off (that may cause the EGR to stick open.)

 

Thanks!

Now I have to figure out what the heck I did to it, or what is wrong causing the surging / stumble at part throttle......