03-18-2017, 12:39 PM | #1 |
Registered User
Join Date: Aug 2006
Location: Redmond, WA
Posts: 6,332
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Crank sensor relearn
I put an LS3 in (GM eRod), and it seems to run just fine. It included a coupon for a free GM dealership "Crank sensor relearn" procedure.
What's the benefit? What's the downside if I never do it? Is this an emissions thing, a driveability thing, or what?
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03-18-2017, 03:54 PM | #2 |
Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,670
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Re: Crank sensor relearn
Found this dave..maybe it'll help..seems like it needs done if replacing the crank sensor...http://forums.trailvoy.com/showthread.php?t=69353
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03-18-2017, 03:58 PM | #3 |
Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,670
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Re: Crank sensor relearn
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03-18-2017, 07:00 PM | #4 |
meowMEOWmeowMEOW
Join Date: Sep 2009
Location: MKE WI
Posts: 7,128
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Re: Crank sensor relearn
no major downside to not doing it. They include the coupon because some swaps won't run right without it being done. It resets the crank angle sensor 0 and makes sure its in phase with the cam position sensors. My swap didn't need one, many don't.
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