1994 Ford Taurus Rough Start Codes

well i'll give this one a shot. but i think your motor is a 3.0
1. if you rpm guage or tach as it is called gets its referance from the green wire at the coil for have been known to have a problem with the plug that pluges into the coil. try to tighten the terminals up and spray a little wd40 in the plug and connect it and disconnect it a couple times. it can also make it hard to start.
2. another thing to check and there known for this also, taurus, sable, tempo you will have to remove the plate that is under the steering wheel the one that you knees almost hit. this will expose the wireing for the switch they be yellow wires look them over real close for burning or burn't wires. but i think you coil may be your real problem and if you have not done a tune up might be good time to do one.
3. the EGR thing is. the DPFE which is (duel pressure feed back) sensor. look for the EGR pipe you will see a rubber hose connected to this pipe if it is not that is what it is telling you EGR flow insufficient. the sensor cant read the flow cause that hose is not on there or it is burned into or the DPFE is bad or it is pluged it is a little grey looking box just follow the little rubber hose up to the box the tube gets pluged up. everything souldns electric to me check the COIL .(NOS)

It is a 3.2 and I have replaced the EGR and I know it is hooked up with vacuum. I Will check to wireing to the RPM. But the odd thing is it works when the check engine lite is out. As for a tune up it has been done. Put all of it together I still am not sure what to do next besides taking out the voltmeter and start checking everthing.

the way i'am reading it is. code 212 loss of Ignition Diagostic Monitor (IDM) signal - short to ground in Spark Output (Spout) circuit. what this means is there is a little square plastic thing that connects in the wireing harness. you pull this out when you want to adjust the timing. and when your done you plug it back in. it is usualy found down by the distributor. there saying it is shorted to ground so that means it either fell out or the wire it plugs into has a hole bubbed in it and shorted it to ground.
changeing the EGR valve won't cure the the flow problem on the 332 code you need to find the DPFE sensor like i explained in last message it will either have two rubber hoses hooked to it or just one this box that they hook too is what reads the flow coming from the exhaust.(NOS)
the module and the stator control the refence in the ignition circuit fixig the first one may possible take care ot the other

I did ajust the timing when the tune up was done. I had believed the guy who put the new engine in that all of the old plug in had been clean good first. What I found was that the coil and Map plug ins had 12 years of dust and stuff in them. After cleaning the plugins on all of the sensor that have come up as a code the car hasn't missed a beat. Thank you so much for your help.

you are very welcome glad to be of some help.Just had to do a little spring cleaning. lol 8)