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A quick question on Map Switching for Tephra or others

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Old Sep 5, 2009 | 06:31 AM
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A quick question on Map Switching for Tephra or others

Can map switching work on the fly? There is a plan to install nitrous on a car I am`working. I was thinking I could use map switching to have a different timing map cme in when the nitrous comes on, but I don't know if it is possible to switch between maps on the fly without causing a stumble or any other funny behaviour.

Has anyne done anything like this?
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Old Sep 5, 2009 | 06:52 AM
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There is a setup where the ECU references specific voltages to switch. It's usually used with methanol for a failsafe, because it switches instantly to the altmap. I have no personal experience with it but I saw something about it a while ago. I will say that It can be done. however someone who is far better informed will have to chime in to show you how.
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Old Sep 5, 2009 | 07:12 AM
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yeah switching using ADC0F.

basically your meth/nos injection box needs to output 5v when it wants the ECU to run the altmap, and 0v when it wants the ECU to run stock maps...

failback to normal maps is instant, switch to altmaps is timer controlled and load threshold'd (so it doesn't accidentally switch while your on booost...
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Old Sep 6, 2009 | 08:06 AM
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From: Jamaica
Originally Posted by tephra
yeah switching using ADC0F.

basically your meth/nos injection box needs to output 5v when it wants the ECU to run the altmap, and 0v when it wants the ECU to run stock maps...

failback to normal maps is instant, switch to altmaps is timer controlled and load threshold'd (so it doesn't accidentally switch while your on booost...
Okay, thanks. The load threshold means it won't switch above the value entered or it won't switch below the value entered?
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Old Sep 6, 2009 | 08:13 AM
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I searched and found the answer. Above the threshold the switching will not work.
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