When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Well boys, pulled the computer and it looks like it tried to roast a hotdog inside. Do you all think it's fixable or should I run to my local junkyard and pull one? There's several efi 460s in the bone yard with E4ODs, would the computer numbers lign up? The two trucks I would be taking a look at are 8th gen and mine is a 9th gen. But the only real differences is just a basic face-lift between the two.
when looking up close it looks like it burned the board itself to an extent.
Well at least, you have an idea, this could help fix more issues, your driver door b-pillar, has calibration code, and that tells what PCM you need, and it is an exact fit, post your calibration code and our Guru's can assure you get correct PCM, and if you tried to go by the code on PCM, your not assured that is an original, one in truck, it is an assumption, I would at least check harness wires for shorts, just to make sure the new PCM doesn't get fried.
You need a 1994 or later PCM that will also run an E4OD and is OBD-I. 1994 and later trucks the computer (PCM) also controls the ignition dwell. 1993 and earlier trucks the Ignition Control Module (ICM) controls that function without computer interaction.
You need a 1994 or later PCM that will also run an E4OD and is OBD-I. 1994 and later trucks the computer (PCM) also controls the ignition dwell. 1993 and earlier trucks the Ignition Control Module (ICM) controls that function without computer interaction.
That's exactly what I thought after looking at PCMS online the way I look at the numbers which is not the correct way but it works for me. I could clearly see a 91 would not work in his truck.
You need a 1994 or later PCM that will also run an E4OD and is OBD-I. 1994 and later trucks the computer (PCM) also controls the ignition dwell. 1993 and earlier trucks the Ignition Control Module (ICM) controls that function without computer interaction.
That's very true. I forgot about that. Yeah, the circuitry is different between the black and gray ones internally. If you run the wrong ICM it'll run around the neighborhood block once, if not less. Happened to my buddy and I told him theres a difference between both of them. But yeah, I could only imagine how well horribly life would get if you used the wrong PCM.
Well at least, you have an idea, this could help fix more issues, your driver door b-pillar, has calibration code, and that tells what PCM you need, and it is an exact fit, post your calibration code and our Guru's can assure you get correct PCM, and if you tried to go by the code on PCM, your not assured that is an original, one in truck, it is an assumption, I would at least check harness wires for shorts, just to make sure the new PCM doesn't get fried.
I called Autozone and gave them the middle number on the left on the computer's label. He said he could get me one within 3 days and I'll have to tell him my mileage (I hooked the computer back up temporarily to take a picture of my odometer) and vin number then I can get it when it's in. He said $220 with a 50 dollar core charge. I did try to find somewhere local that sells capacitors but I had no luck. I was going to attempt to fix it. I mean is it even worth fixing? Two are broken and the one closest to the computers case wall is the worst and left a burn mark on the cover. That same one burned through to the other side a little bit. I don't have a picture of that but if you guys want to see the other side then I'll gladly show you.
Agreed, I'd be scared what else it ate, why suggesting checking PCM connector wires, for continuity/short to ground, before powering up new PCM, it may be fine...bbbuuuttt
Agreed, I'd be scared what else it ate, why suggesting checking PCM connector wires, for continuity/short to ground, before powering up new PCM, it may be fine...bbbuuuttt
I'll check the wires. I found two frayed ones that I put dielectric grease and electrical tape around, but that didn't connect to the pcm directly. It was right next to the fuse box.
Sorry to see your PCM is most likely toast. I was sincerely hoping that was not as bad as it appears. If you gave the Autozone counter jockey only the 12A650 engineering number you will most likely get the wrong computer. That base number is common to thousands of PCM versions. They need F4TF-ZA to cross reference. Perhaps with the VIN they may be able to source the correct version. Do not hold your breath. Hold on to your core for as long as you can.
Sorry to see your PCM is most likely toast. I was sincerely hoping that was not as bad as it appears. If you gave the Autozone counter jockey only the 12A650 engineering number you will most likely get the wrong computer. That base number is common to thousands of PCM versions. They need F4TF-ZA to cross reference. Perhaps with the VIN they may be able to source the correct version. Do not hold your breath. Hold on to your core for as long as you can.
Very good points, and yeah, they told me that I needed to tell them the vin and how many miles are on it. I mean, I would be all down for a junkyard pcm if I were lucky enough to find a 460 auto in a 9th gen body style so long as the icm matched mine. But here I am, going the expensive route. And wouldn't I have to bring my core to them as once I buy the new PCM? I haven't ordered it because I want to drive up there this weekend if not sooner so I know they don't screw up the order. I mean, I don't deal with Autozone or O'Reilly autoparts. Napa is less than half the distance they are bit they don't have my pcm in any napa warehouses. Further more, I think I could return and get my core charge even after because I replaced my alternator on my cummins and I had to go back to give them the core and get my money after installation. Not sure if there's a time limit on that though 🤔
Not sure if anyone is still following this thread, but I have a question. Is the mileage (odometer reading) stored in the pcm or somewhere else? I ask this because when I talked over the phone with Autozone they said they would need the VIN and mileage. But when I stopped at Autozone to see what they had it was a special order and when they looked in their systems it didn't say anything about needing VIN and odometer reading. Keep in mind the truck is a 1994 so it is a digital odometer. Thought maybe the mileage could be stored in the cluster like the older ones up until obd2. Any thoughts? I think I may end up buying online, we'll see.
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.
