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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Question on new truck harsh shifting and code then P0420
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<blockquote data-quote="Traffic22" data-source="post: 1483563" data-attributes="member: 41102"><p>I believe it is two different sets of programming. The shifting is controlled by the TCM, the engine by the ECM/PCM. Did they re-flash your ECM/PCM to the most current version too?</p><p></p><p>I bought an 18 about a month ago, had the same rough shifting, brought it in and had the TCM done, and paid to have the newest version of ECM/PCM done as well. No codes or check engine light, but I also don't have the mods you do.</p></blockquote><p></p>
[QUOTE="Traffic22, post: 1483563, member: 41102"] I believe it is two different sets of programming. The shifting is controlled by the TCM, the engine by the ECM/PCM. Did they re-flash your ECM/PCM to the most current version too? I bought an 18 about a month ago, had the same rough shifting, brought it in and had the TCM done, and paid to have the newest version of ECM/PCM done as well. No codes or check engine light, but I also don't have the mods you do. [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Question on new truck harsh shifting and code then P0420
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