Engine light & code P164A - Ford Powerstroke Diesel Forum
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Old 03-28-2012, 07:58 PM
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Engine light & code P164A

Read up and got two answers on this code, first being air filter clogged up, changed it and engine light is back on. Second, i have read that it is an O2 sensor. I will be looking under truck in mourn, iam wanting to know if this engine light on is harmful to drive my truck?
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Old 03-29-2012, 09:26 PM
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Any techs out there that have any input on this code and engine light being on? Greatly appreciate any info!
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Old 04-02-2012, 08:35 AM
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there is a tsb, replacing NOx sensor and clearing adaptive tables in the NOx gateway, and PCM relcalibration.
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Old 04-03-2012, 01:41 PM
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I had the CEL come on, NOx sensor replaced, drove 14 kms and the CEL came on again with a P164A. Tables were cleared five times. Dealer wants to keep the truck for a few days and run around with it with a computer attached, which is fine by me.
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Old 04-03-2012, 02:21 PM
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Old 04-04-2012, 07:32 PM
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im booked in with the dealer next week, the cel has been on over a week now and iam also experiencing poor tranny shifts!!
just broke 40,000km no issue.....first cel and now all of this
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