She died!
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Laughing Gas
Joined: Jul 2001
Posts: 850
Likes: 14
From: Fayetteville, NC
She died!
So, on my way to work yesterday my old girl just up and died on me without warning. It was as if the key had been turned off. She's done this off and on recently while driving but would start right back up on its own. I let it sit for a minute and she would turn over fine but wouldn't start. I know these 90's trucks were known for the ICM to go out so I replaced it. The truck started right up but the check engine light is now on. Drove it back home and pulled the codes. I got P0320, P1351, and P1359. All of my electrical connections are tight. It has a new coil, wires, plugs, etc. What do you all think, bad distributor? It's the only other thing I can think of, aside from the computer. 
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
P0320 Ignition/Distributor Engine Speed Input Circuit Malfunction
P1351 Ignition Diagnostic Monitor circuit Input fault
P1359 Spark Output circuit fault
All three point to installing the wrong Ignition Control Module. I suspect they sold you a gray colored Push-Start style ICM. You need a black CCD style ICM. The computer is not getting the IDM signal input from the gray ICM.
P1351 Ignition Diagnostic Monitor circuit Input fault
P1359 Spark Output circuit fault
All three point to installing the wrong Ignition Control Module. I suspect they sold you a gray colored Push-Start style ICM. You need a black CCD style ICM. The computer is not getting the IDM signal input from the gray ICM.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
There is a CM code for erratic PIP signal but that comes from the distributor not the ICM. If you had a gray ICM before and no codes you definitely have something wrong.
The reason for the wrong ICM is many part manuals including Ford are wrong for these trucks. You need a black CCD style ICM. We go through this a lot.
The 1994 and later trucks take the black colored CCD-Style ICM.
Motorcraft - DY1077 (supercedes DY679, DY667, DY645)
Ford - 5U2Z-12A297-D (supercedes F1PZ-12A297-A)
The reason for the wrong ICM is many part manuals including Ford are wrong for these trucks. You need a black CCD style ICM. We go through this a lot.
The 1994 and later trucks take the black colored CCD-Style ICM.
Motorcraft - DY1077 (supercedes DY679, DY667, DY645)
Ford - 5U2Z-12A297-D (supercedes F1PZ-12A297-A)
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Laughing Gas
Joined: Jul 2001
Posts: 850
Likes: 14
From: Fayetteville, NC
Gotcha. It looks like a 1994 F150 with the 5.8 has the option for the grey and the black modules. I'm assuming that since the grey one is the same for my 1996 7.5 that the black one for the 94' 5.8 would be the correct module.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
1994 was the first year for the black CCD ICM. 1994 and later trucks ALWAYS use the black ICM, assuming it's a gas engine.
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Laughing Gas
Joined: Jul 2001
Posts: 850
Likes: 14
From: Fayetteville, NC
It is. It has the 7.5 in it. Strange how Advance and them don't list the black one as an option for the 1996.
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Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
Motorcraft - DY1077 (supercedes DY679, DY667, DY645)
Ford - 5U2Z-12A297-D (supercedes F1PZ-12A297-A)
There is no "performance" version only crappy aftermarket clones. It's basically a switch controlled by the computer to turn the coil on and off. There is no performance gained by a "performance" replacement, only wallet thinners.
Ford - 5U2Z-12A297-D (supercedes F1PZ-12A297-A)
There is no "performance" version only crappy aftermarket clones. It's basically a switch controlled by the computer to turn the coil on and off. There is no performance gained by a "performance" replacement, only wallet thinners.
Fleet Owner
Joined: Oct 2005
Posts: 20,789
Likes: 1,753
From: Kentucky
If it does not fully resolve the issue you may have the dreaded PIP issue. It's always been tough to diagnose which one is bad, i.e. the PIP or ICM. If you would have posted before swapping in the ICM I would have suggested replacing the PIP or the whole distributor since the black remote mounted ICMs rarely go bad.
In your case it looks like a replacement ICM may have resolved the issue but inadvertently triggered the loss of IDM codes. Just be sure to use plenty of thermal paste on the ICM when installing. The translucent dielectric grease is not a suitable replacement for thermal compound.
In your case it looks like a replacement ICM may have resolved the issue but inadvertently triggered the loss of IDM codes. Just be sure to use plenty of thermal paste on the ICM when installing. The translucent dielectric grease is not a suitable replacement for thermal compound.
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Laughing Gas
Joined: Jul 2001
Posts: 850
Likes: 14
From: Fayetteville, NC
So, after replacing the distributor (with a new one) and ICM, the intermittent stumbling has returned. This time with a vengeance. The truck stalled on me 6 times so far today. Still have to make it home in a little while. I'm going to see if I can exchange the distributor this weekend. Really irritating since I have the truck up for sale now. It's been fine until we got the snow last night. Wonder if the excess moisture in the air has anything to do with this???
Laughing Gas
Joined: Apr 2011
Posts: 913
Likes: 7
So, after replacing the distributor (with a new one) and ICM, the intermittent stumbling has returned. This time with a vengeance. The truck stalled on me 6 times so far today. Still have to make it home in a little while. I'm going to see if I can exchange the distributor this weekend. Really irritating since I have the truck up for sale now. It's been fine until we got the snow last night. Wonder if the excess moisture in the air has anything to do with this???
I've even had the motorcraft ones fail right out of box!!!