TwinTurbo.NET: Nissan 300ZX forum - The Zem is separate device to the stock ecu physicaly.
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Subject The Zem is separate device to the stock ecu physicaly.
     
Posted by AzHeat on March 01, 2007 at 10:48 PM
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In Reply To zem piggyback's the stock ecu (n/m) posted by Guapo on March 01, 2007 at 10:40 PM
     
Message But virtualy it is one ecu not two. An ECU has one map to control the EFI. When you have a piggy back you have two maps. The piggy back map is controlling the inputs to the ECU's maps. The ECU's maps gives the final instruction set.
A/F controller is more or less a piggy back to the main ecu.


On the Zem there is one map only which sits in the main slot where the stock chip use to be. You can't have a Zem piggy back on top of a stock chip or JWT chip. The Zem replaces the main chip (main map) .

     
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