 AT tranny more prone to knocking? |
 Jan 23, 2008 - 9:41 PM
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Enthusiast  Joined Oct 27, '05 Currently Offline Reputation: 0 (0%)  |
ok, im actually reading this emanage ultimate features stuff and looking to justify to upgrade over from my blue.
thn i spotted this feat called... "A/T Shift Compensation Feature - On vehicles with Automatic Transmissions, ignition timing can be compensated at set shift-up and shift-down points". and i remember i saw the abt the samething in HKS Fcon-Is "Ignition Revision on an AT Vehicle···· Prone to knocking during shifting, this function remaps the ignition curve" Does anyone know how does it work? Why is it on auto tranny, during shifting more prone to knocking? |
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Jan 23, 2008 - 10:51 PM
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 Enthusiast Joined Oct 10, '03 From Wichita, KS Currently Offline Reputation: 5 (100%) |
The different load during gear shifts must be compensated for by adjusting the timing. The stock ECU handles this transparently but when you start messing with the signal using piggy backs you have to compensate for it manually.
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normality78 AT tranny more prone to knocking? Jan 23, 2008 - 9:41 PM
Tony_the_Tiger QUOTE(normality78 @ Jan 23, 2008 - 9... Feb 6, 2008 - 6:45 AM |
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