TwinTurbo.NET: Nissan 300ZX forum - short answer. ECU retards timing when it sees knock
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Subject short answer. ECU retards timing when it sees knock
     
Posted by Carlos Ramirez on January 15, 2003 at 9:12 PM
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In Reply To The new and improved Detonation Dissertation. posted by AshsZ (FABio) on January 15, 2003 at 08:20 PM
     
Message And this is done as function of the ecu regardless of what the current timing it is programmed for.

Which is what many where saying happens anyways regardless if you are using JWT, stock, or the ecu you are marketing.

The real difference is what is the starting timing point of which I believe is higher on your ECU anyways (and you even claimed it to be).
As you stated when knock is registered it triggers the ecu to retarded timing by 1, then 2, 4,8,12 and etc until no knock is detected.

So by your own example bypassing the knock sensor is the worst thing you can possibly do to have the ecu compensate for knock and detonation.

Also back to your orginal statement that JWT ECU doesn't protect against detonate because the low and high octane maps are the same. Which I still don't believe as being correct but only JWT can give an actual answer to this. The bottom line is that the ECU will continue to retard timing until knock is no longer detected.


     
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