Ok, I was just trying to change my O2 sensor, when I noticed my plug to my airpump had a wire pulled out of it. So ifixed that. There is also a plug(blue w/ 2 black wires, one w/ orange stripe other w/ blue stripe) next to the airpump one. It would reside right under stock intercooler duct, next to the black vacuum cache tank. It does not have any slack so must have/of plugged into something relatively close. Any ideas?

Also, warning and helpful advice. I dont check under my hood to often. However, the O2 sensor project got me down close. Right below the above plugs or rightnext to them, is a one way green vacuum valve coming from exit port of turbo and running to the second spot on the black vacuum cache tank. Well, the valve was broke off at the connection w/ the vacuum hose. Unless I was looking closely at it, which i was due to the plug mishap, I would have never have seen it. So, to everyone, check the hoses every once in a while. I am not sure if I just broke it or not, but the heat had a lot to do w/ it, I could tell by looking at the hose/valve.

Argh, now I need to order a one way valve. Anybody have any idea the part number.

Steve

 

nm

 

The blue electrical connector goes nowhere on non-California 1993 FD's. On all of the rest of them, it goes to the EGR.

 

Part number N39013995A.

 

You already stated your problem.. You don't check under your hood often. I look mine over everytime I take it out. I kinda keeps these things from happining if ya know what I mean.