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taurus6 · 07-20-2006, 01:14 PM

OK, that makes sense. So are you saying that during closed loop, you can get the tune close enough to prevent the ECU from adapting, but during open loop it goes way off, causing the ECU to adapt?

If so, can an output of the piggyback cause an alternate (spoofed) input to the ECU instead of the 02 sensor that only occurs at a certain boost point. I assume anything over the normal vacuum that the ECU expects normally.

07-20-2006, 01:14 PM	#7 (permalink)
taurus6 Registered User Join Date: Jun 2006 Posts: 71	OK, that makes sense. So are you saying that during closed loop, you can get the tune close enough to prevent the ECU from adapting, but during open loop it goes way off, causing the ECU to adapt? If so, can an output of the piggyback cause an alternate (spoofed) input to the ECU instead of the 02 sensor that only occurs at a certain boost point. I assume anything over the normal vacuum that the ECU expects normally.