Misfire without codes?

2004 FORD F-250
155,000 MILES • 6.8L • V10 • 4WD • AUTOMATIC
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BIGMUSKY
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The truck will misfire and sometimes come to a complete skip. The problem gets worse the farther the gas pedal gets pressed. I got a cam sensor code and changed the sensor. I got cylinder 4, 5, 10, misfire. I replaced coils on cylinders 3, 4, 5, 10 and 9 and spark plugs all the way around. I have had no codes since then, but the problem still persists. Torque ran a $06 test and came back with:

TID: $04 CID: $11
High sensor voltage for switch time calculations

Min:119 Max:768
Current:0


TID: $04 CID: $21
High sensor voltage for switch time calculations

Min:119 Max:768
Current:0
Jan 14, 2024 at 12:13 PM
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STRAILER
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What scanner did you use to get these codes? They make no sense. Can you rescan the truck for codes by going over this guide please?

https://www.2carpros.com/articles/checking-a-service-engine-soon-or-check-engine-light-on-or-flashing

Please upload a shirt video of the problem so we can see what's going on. Is the engine missing or shutting off momentarily like it is a lack of fuel? Also, I would replace the remainder of the ignition coils. I have seen a clogged fuel filter or a bad MAF sensor cause these kinds of problems and not trigger a trouble code. Both are regular service items. Check out the images (below). Please let us know what happens.

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Jan 14, 2024 at 2:28 PM
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BIGMUSKY
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I was using the Torque app under the testing tab. I have not had any codes from the truck in a long time. The stuff I did get was from a mode $06 test.

The truck has never died on me. It runs fairly smooth on idle. But when it gets warm it is skipping enough to have no power.
Jan 16, 2024 at 3:29 AM
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STRAILER
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Misfires don't always cause codes, but you should be able to see the misfire count on the scanner. To confirm I would double check the spark plugs to make sure one or more is not cracked and that the engine has all new ignition coils. Also, I would install a new MAF sensor and fuel filter.
Jan 16, 2024 at 9:23 AM