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Cylinder contribution test

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Old Oct 7, 2019 | 08:29 PM
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Cylinder contribution test

My son's 1997 F-150 4.6 has an intermittent miss, mostly under heavier throttle. Been running fine, started missing a couple of days ago. I have Autoenginuity with the Ford bundle. Is a cyl contribution test possible? Throwing no codes.
 
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Old Oct 7, 2019 | 09:10 PM
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70f100longbed
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Can it access Mode 6 data? The misfire history is stored there.
 
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Old Oct 8, 2019 | 07:56 AM
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Thanks for the reply 70f100longbed. I don't know, I will have to check. I'm trying to figure out why no CEL is coming on, unless the system is too old and unsophisticated to do that.
 
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Old Oct 8, 2019 | 12:43 PM
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CEL won’t come on unless the misfire exceeds a specific threshold.

AE should be able to display mode $6 data.
 
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