Mark VIII Misfire problem, code 214

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Offroad77

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Hello Everyone, My name is adam, I have been a lincoln nut forever and joined in 2005, Im glad to see this site is still very active :), i have been a few years since my black mark VIII and I have just finally got another exact match black on black 94 Mark VIII. OMG did i ever miss driving such an amazing car!!!

Ill start off by saying that I have spent alot of time searching the forums for my problem but as most threads start out saying, the search feature doesnt narrow down the information very well, so im asking for help.

My car developed a miss that is there all the time, all rpm ranges etc. I have ample fuel flow and pressure. I then ran my codes and got one for an egr valve but havent got it again, but the code i got that im sure is the problem is a 214. which is "Error in Cylinder ID Circuit". I purchased a Camshaft Position Sensor and installed it this morning with no success. when the car is running i can unhook the cam sensor and the car doesnt change at all.

I took a volt meter across the two wires in the plug for the sensor to see if i get a 5 volt reference. i was just guessing on that though. does the cam sensor infact use a 5 volt signal or it it a ground window?? what is the proper way to test the circuit?? is there a common place that the wiring harness goes bad?? the connection in the plug itself appears to be fine. Or perhaps is there something else that anyone might think that im totally missing??

All help is appreciated, I miss driving my car!! lol the ol pickup just isnt cutting it

Thanks
 
I'm guessing you've checked the plugs and wires. Code reference is an ECU fault
 
I did just replace the plugs with a motorcraft set, the wires are not in the best of shape but i have determined that they are not at fault. Are you suggesting that i replace the actual computer?? and I havent started digging to find it yet, is it located in fords common spot up behind the ebrake pedal and thru the firewall??
 
It's located right by the brake pedal yes, you only need your finger to pop the clip off the bottom, and a 10mm socket to loosen the bolt for the harness

It's seriously a 30 second swap

How did you come to the conclusion that your old wires aren't the issue?
You could have a dying coil pack as well
 
I did a cylinder balance test, took the wires off the coils one at a time and they all had a very equal drop in engine performance and having the 214 code i thought i was confident that it was a cam sensor issue of some sort, I can also unhook the cam sensor while running and it does not change a thing so that also made me believe the same

After today however i think i may be barking up the wrong tree. I started off by thoroughly testing the cam sensor circuit wiring, i probed pins 24 and 46 from the ECM and checked their continuity to the cam sensor plug, I checked 24 to have a short to ground and I also checked to make sure that it has an AC voltage signal across them while running and all those checks are a pass.

and that other thing thats changing my mind is that i cant get the car to produce a code again, i touched it battery terminals together to clear all memory and ran the car for 4 or 5 mins, revving up and down a bit and all i got was a 10 and 111 (system pass).

My next thoughts would be the coils or wires too but i thought the cylinder balance test would have shown that.
 
I will vote coils-they can and do go bad and your symptoms are indicative of a bad coil.
 
Coil test is easy. Pul a plug one by one. If you find one were there is little change, then its probably spark and time to get a new coil pack.
 
Sure enough coils and wires did the trick, my car has never sent up the 214 code again and was a fluke which really misled me. But she's fixed up so it's great :) thanks everyone for your help
 
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