Haltech E8 - Manual (Page 112)

Haltech E11/E8 Instruction Manual
Settings
Cam Input Settings
• Edge - Selects if the signal triggers off the falling or rising edge. Changing edges will require a reset.
• Cam Trigger Angle - The angle between TDC and when the intake cam is at its most retarded
position.
• RPM Filter Start - The RPM at which the software filtering done by the ECU begins.
• Min Angle - When the software filtering starts any angle that the ECU sees below this value is
considered erroneous.
• Max Angle - When the software filtering starts any angle that the ECU sees above this value is
considered erroneous.
Cam Output Settings
• VCT Frequency - Frequency at which the variable cam timing solenoid runs at.
• Steady Cam Pos DC - This value is the duty cycle that will keep the cam in a fixed position. Will be
somewhere around the 50% point. This value is best set when the engine is up at operating
temperatures.
• Min Duty - The minimum duty the controller will output to the VCT solenoid. Generally 10% less
then the ‘Steady Cam Pos DC’. I.e. if the ‘Steady Cam Pos DC’ is equal to 45% then the ‘Min Duty’
will equal 35%.
• Max Duty - The maximum duty the controller will output to the VCT solenoid. Generally 10% more
then the ‘Steady Cam Pos DC’. I.e. if the ‘Steady Cam Pos DC’ is equal to 45% then the ‘Max Duty’
will equal 55%.
• Deadband - Area around the target cam angle which the controller stops controlling. E.g. target cam
angle = 10deg, deadband = 1deg, therefore if the cam angle falls between 9deg and 11deg then the
variable cam controller will ignore any changes in cam angle and considered it to be controlled.
• Min Coolant Temp - The minimum coolant temp that the variable cam timing controller will work.
Below this the output duty cycle will be zero.
• Max RPM - The maximum RPM that the variable cam timing controller will work. Above this RPM
the output duty cycle will always be zero.
• Max Cam Angle - Any value in the ‘VCT Cam Angle Map’ that goes above this will be clamped by
the output to this value.
Default Settings
Cam Input Settings:
• Edge Vehicle Dependent
• Trigger Angle Vehicle Dependent
• RPM Filter Start 3000 RPM
Page: 112 Copyright © Haltech 2008