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p0742 after segment swap and new 4l80e

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Old Oct 17, 2017 | 02:35 PM
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Default p0742 after segment swap and new 4l80e

I'm getting a p0742 error code after installing a new 4l80E. I repined my 60E harness and my tuner did the segment swap. I'm fairly certain its a wiring or tuning issue. I've read on some of the hptuner forums that the p0742 error code needs to be deleted. Does anybody know if this is a tuning issue?
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Old Oct 19, 2017 | 02:15 PM
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Originally Posted by hsiriyob
I'm getting a p0742 error code after installing a new 4l80E. I repined my 60E harness and my tuner did the segment swap. I'm fairly certain its a wiring or tuning issue. I've read on some of the hptuner forums that the p0742 error code needs to be deleted. Does anybody know if this is a tuning issue?
Bump for more info. What year truck are you working on? Can you share a copy of the wiring diagram you used for the repining?
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