TephraMODs for the X
HFS - one of the Aquamist methanol injection kits. On the VIII and IX, we used Tephra's work for map switching between meth and non-meth as well as for flashing the CEL on knock.
Thread Starter
Joined: Feb 2007
Posts: 9,486
Likes: 67
From: Melbourne, Australia
HFS = meth/water injection kit from Aquamist 
KnockCEL is done...
AltMap via TPS/CruiseControl/ADC is done...
I am just in the process of getting an spare ECU to find a universal free input...

KnockCEL is done...
AltMap via TPS/CruiseControl/ADC is done...
I am just in the process of getting an spare ECU to find a universal free input...
Thread Starter
Joined: Feb 2007
Posts: 9,486
Likes: 67
From: Melbourne, Australia
altmap is my name for being able to switch maps.
the list of switchable maps is highgearactivewgdc, lowgearactivewgdc, highgearpassivewgdc, lowgearpassivewgdc, highgearbdel, lowgearbdel, highocttiming, highoctfuel, injectorscaling, crankingenrichment
The methods for switching maps is:
TPS = RPM = 0, IGN=ON, hold TPS @ WOT for predefined period of time (you can define the time required) - repeat to switch back
CruiseControl = hold CruiseControl ON/OFF down for predefined period of time (you can define the time required) - repeat to switch back - can be done while driving, there is a load threshold so you dont accidentally switch above a predefined load
ADC = patch a 5v signal from a switch or your NOS or Meth controller INTO the ECU, when this circuit goes ABOVE a certain voltage the ECU will switch to the other maps, when it falls below the threshold it will switch back immediately...
when the ECU is running the "other" or altmap it will blink the Intercooler spray light on the combo screen...
think that about covers it
the list of switchable maps is highgearactivewgdc, lowgearactivewgdc, highgearpassivewgdc, lowgearpassivewgdc, highgearbdel, lowgearbdel, highocttiming, highoctfuel, injectorscaling, crankingenrichment
The methods for switching maps is:
TPS = RPM = 0, IGN=ON, hold TPS @ WOT for predefined period of time (you can define the time required) - repeat to switch back
CruiseControl = hold CruiseControl ON/OFF down for predefined period of time (you can define the time required) - repeat to switch back - can be done while driving, there is a load threshold so you dont accidentally switch above a predefined load
ADC = patch a 5v signal from a switch or your NOS or Meth controller INTO the ECU, when this circuit goes ABOVE a certain voltage the ECU will switch to the other maps, when it falls below the threshold it will switch back immediately...
when the ECU is running the "other" or altmap it will blink the Intercooler spray light on the combo screen...
think that about covers it
altmap is my name for being able to switch maps.
the list of switchable maps is highgearactivewgdc, lowgearactivewgdc, highgearpassivewgdc, lowgearpassivewgdc, highgearbdel, lowgearbdel, highocttiming, highoctfuel, injectorscaling, crankingenrichment
The methods for switching maps is:
TPS = RPM = 0, IGN=ON, hold TPS @ WOT for predefined period of time (you can define the time required) - repeat to switch back
CruiseControl = hold CruiseControl ON/OFF down for predefined period of time (you can define the time required) - repeat to switch back - can be done while driving, there is a load threshold so you dont accidentally switch above a predefined load
ADC = patch a 5v signal from a switch or your NOS or Meth controller INTO the ECU, when this circuit goes ABOVE a certain voltage the ECU will switch to the other maps, when it falls below the threshold it will switch back immediately...
when the ECU is running the "other" or altmap it will blink the Intercooler spray light on the combo screen...
think that about covers it
the list of switchable maps is highgearactivewgdc, lowgearactivewgdc, highgearpassivewgdc, lowgearpassivewgdc, highgearbdel, lowgearbdel, highocttiming, highoctfuel, injectorscaling, crankingenrichment
The methods for switching maps is:
TPS = RPM = 0, IGN=ON, hold TPS @ WOT for predefined period of time (you can define the time required) - repeat to switch back
CruiseControl = hold CruiseControl ON/OFF down for predefined period of time (you can define the time required) - repeat to switch back - can be done while driving, there is a load threshold so you dont accidentally switch above a predefined load
ADC = patch a 5v signal from a switch or your NOS or Meth controller INTO the ECU, when this circuit goes ABOVE a certain voltage the ECU will switch to the other maps, when it falls below the threshold it will switch back immediately...
when the ECU is running the "other" or altmap it will blink the Intercooler spray light on the combo screen...
think that about covers it

- Bryan
Thread Starter
Joined: Feb 2007
Posts: 9,486
Likes: 67
From: Melbourne, Australia
well I just sent a test version to Bryan for his RA..
it contains everything except the ADC switching.. I will redo it once I finalise the pinout on the ECU for that...
it contains everything except the ADC switching.. I will redo it once I finalise the pinout on the ECU for that...






