Engine Problems - EEC Code 19

[element913]

Hey Guys

Awhile back I had what I thought to be an Engine Computer problem, when driving my car would bog out bad as if it was misfiring many revs at a time (like 10 or 20 revolutions). At the time the engine spit out a 19 for the error code, and after replacing the CID sensor with no luck I decided to replace the engine computer. After i got one from pick n pull, the car seemed to work fine for a couple months until recently, today it didnt start for about 10 minutes and sure enough when I ran the codes i got a 19 again. However, this time i really doubt it could be the engine computer, but it is still a possibility as the one i put it was a used one. Im really worried its a harness issue, more or less because i dont want to have to rewire my engine computer (BAH!). Has anyone else ever had a similar issue? What was your fix? Any ideas what i can do to solve this? It seems like its a mechanical problem, some sort of solenoid or something. Like its somehow related to impacts (shock, vibration). Although it hasnt happened while driving yet since the new engine computer. When i was starting the car, for awhile it acted like there was no power to the starter (it was kinda groaning, no click noises tho), then after awhile it was like the starter had plenty of juice but the car just didnt start (it wound up really high). Could my starter be failing?

Thanks,

 

[aaronsbiza]

Sounds like a Crank Position Sensor. Is your tach registering?

 

[projectSHO89]

For the first problem, pull the connector off the CID sensor and inspect the pins of the harness connector for corrosion or bent/damaged pins. Your symptom is consistent with a loss of the CID signal.

The starter might be failing. Hoever, the cables and connections should be checked first.

Steve

 

[element913]

One important thing I forgot to note is that the problem is VERY intermittent. It happens rarely and has been happening for quite awhile. I would think that things like loose wires or bad sensors would have more common occurrences.

It doesnt look like i have any visible wire or pin damage.

Thanks,

 

[aaronsbiza]

When I first bought my car I was experiencing much the same problems. The car would intermittently not start. It would just crank over and catch sometimes only to die out immediately. 15 Minutes later you go to start it and wala!

I brought the car back to the ford dealer and they ran the codes and got a code 19. They replaced the CID and returned the car to me. I still had the same problem. I brought the car in again and they wanted to replace the computer, mind you it was all free of charge being that they just sold me the car. Fortunately I found the shoforum and was able to research and recommend to the service techs the possibility of the CPS (Crank Position Sensor) being bad. They replaced the CPS and the car was fine from there on out. I only replaced it once more when I replaced my water pump. A leaking water pump can easily foul your CPS.

However, if I am not mistaken I believe another code is present when the CPS has gone a-wall. Search the board for CPS and I am sure you will find an answer.

Good Luck

 

[element913]

At the moment I really doubt that my problem is related to the CPS, it was replaced recently and my water pump does not leak. I check all the grounds that i could find and they all seem to be ok. The intermittence of this problem keeps telling me that its a wiring harness issue, but another important thing that I forgot to note was that the problem usually happens when the car is running at full temp (when the fan is going off at every stop light). So I am expecting the problem to be heat related, maybe the heat raises the resistance in the partially corroded wire and cuts out its signal entirely. It would be nice if it was just a part that i could replace.

Thanks,

 

[SHOmetheway]

Sounds like your SHO and mine are doing similar things. Both are '89s and putting out a code 19. I've had mine since brand new and it has never done this "missing" and "bucking" thing like it's been intermittently doing over the past 2 weeks.

You can look at my first post on this problem; entered it this afternoon (Persistent Code 19), maybe I made it too long, put in too much detail - hey I'm new to this forum, not sure what 'works' here and what doesn't! I changed my CPS (crankshaft position sensor) during a front 60k the other day and it's better, just not totally fixed; and is still giving me a code 19. I believe a code 14 is more relevant to the CPS going bad, so you may be right that your CPS isn't the culprit. (I first changed out my Camshaft Pos. Sensor and that didn't help)

What exact part did you replace when you changed out the 'engine computer'? I'm trying to get a bead on what other computers/relays/control modules, etc. there are on the car so I can then narrow down which one of those is most likely causing this problem.

 

[element913]

Well the Engine Computer is the EEC unit that runs the entire engine. Its located near the service port to check for the codes. It sits behind the glovebox and connects on the engine side of the firewall. They run about $200 remanufactured usually. In looking at a wiring diagram for our cars, the CID circuit is actually just the "DK GRN" wire that connects the CID sensor to the EEC. Due to how close the CID sensor is to the EEC i doubt that the wire could be very long at all. However I am not explicitly sure that this is the ONLY wire in the CID circuit, its just the only one that is labeled CID on the wiring diagram. I ordered a CID sensor in the off chance that my current one went bad. After this I will buy a remanufactured EEC, and if that doesnt fix it, it will be time to tear up my engine harness and find this f**ker.

I think with my problem being related somewhat to high tempreatures. It is most likely one of the two things above.

If you find a fix, let me know! Ill keep you posted.

Thanks,

 

[element913]

Well I got some electronics cleaner and Non-Conductive grease, cleaned up all the connections related to the CID circuit and all seems to be fine now, the connector to the sensor was really dry, I think the grease helped a little bit. Hope this works for you .

Thanks,