Hi, my name is Tom. I need your help in getting this problem fixed. I have a 2004 ford ranger 4.0l 4x4 crew cab. I have a little rough idle. once you touch the gas it runs great. Get it up over 1000 rpm and it run fine. I will give you a list of all the parts. Complete exhaust front to back and cats. Complete tune up, new motorcraft injectors, intake manifold gaskets, timing chain tensioners and a new front lower chain tensioners , i.a.c. , pcv and new hose assembly, crank shaft tensioner, ect,. I do notice the 4,5 and 6 wires are funtioning correct when they are disconnected. The 1,2 and 3 wires dont have any change when they are disconnected. Just a rough idle whether they are off or on. Could i have a problem with the prom!!!! PLEASE HELP

 

Welcome tmshoe

I'm really new to working on trucks. Just got my first Ranger. Have done a few small things. Not anything near what you have. I know this collective group can help you out. There is lots of reasources here. Enjoy.