2002 No-Start, Update and Solution
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Posting Guru
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From: NorCal
2002 No-Start, Update and Solution
For those who have helped me out, thank you. The original thread is located here...
https://www.ford-trucks.com/forums/1...placement.html
In short, back in January, my 2002 7.3 died while idling. It wouldn't restart for some time then started acting normal for a day. The next day it would not start. I ordered AE from Clay, after he wouldn't allow me to replace what I thought was a bad IPR. After receiving AE, I realized Clay was correct. My issue was not IPR, CPS or Battery related.
After weeks of troubleshooting, ohming every wire I could find, trialling a good IDM and ohming every wire I could AGAIN.... I could not shake my P1667 code and no start/dying issue. My problem ended up being a broken connector on the PCM. A new PCM and she's as good as new.
https://www.ford-trucks.com/forums/1...placement.html
In short, back in January, my 2002 7.3 died while idling. It wouldn't restart for some time then started acting normal for a day. The next day it would not start. I ordered AE from Clay, after he wouldn't allow me to replace what I thought was a bad IPR. After receiving AE, I realized Clay was correct. My issue was not IPR, CPS or Battery related.
After weeks of troubleshooting, ohming every wire I could find, trialling a good IDM and ohming every wire I could AGAIN.... I could not shake my P1667 code and no start/dying issue. My problem ended up being a broken connector on the PCM. A new PCM and she's as good as new.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
Glad you found the problem Rich. Perseverance pays off. Thanks for posting what the problem was. Makes me fell better about havig a spare PCM in my truck.
Did you find the broken pin stuck in the female connector? Just curious.
What pin was it?
Did you find the broken pin stuck in the female connector? Just curious.
What pin was it?
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Posting Guru
Joined: Apr 2000
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From: NorCal
It was frustrating to say the least. I feel the best thing I can do is share my experience with others.
Unfortunately, the pin was not broken on the external side of the connector. Best I can assume it was PCM pin # 96. Strangely enough, I was getting the P1667 with or without the IDM connected. It was definitely affected by hot/cold and vibration which is a classic sign of a broken solder joint (or moisture intrusion).
There are a lot more tests I would have liked to perform but I needed the truck back on the road.
Unfortunately, the pin was not broken on the external side of the connector. Best I can assume it was PCM pin # 96. Strangely enough, I was getting the P1667 with or without the IDM connected. It was definitely affected by hot/cold and vibration which is a classic sign of a broken solder joint (or moisture intrusion).
There are a lot more tests I would have liked to perform but I needed the truck back on the road.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
P1667 - CID (Cylinder IDentification) Failure
PCM Pin 96 - Cylinder Identificaion Output
This is why I wanted the pin number to put these two together for future reference.
Thanks Rich and great troubleshooting.
PCM Pin 96 - Cylinder Identificaion Output
This is why I wanted the pin number to put these two together for future reference.
Thanks Rich and great troubleshooting.
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