Manual
28
MAP S ensor
The F10 needs to know the type of M anifold Absolute Pressure (M AP) sensor being
used. Enter the correct description here to match. If using throttle position mode, set
this parameter to a 1 Bar sensor.
The valid values for this parameter are: 1 BAR, 2 BAR and 3 BAR
RPM Limit
The F10 can limit the maximum rp m at which the engine will op erate. Above this
level the F10 comp letely cuts fuel or ignition (see below) to the engin e. When the
engine speed drops below the RPM Limit the F10 will resume normal fuel or ignition
delivery. This is known as hard limiting. If the RPM Limit is not needed then set this
value above the highest op erating point of the engin e.
The valid values for this parameter are: 2,000rpm – 16,000rpm
Units
The Haltech F10 programming software can display parameters in either Metric or US
units.
The valid values for this p arameter are: M etric, US
RPM Mode
The F10 fuel and ignition maps may be arranged either in 500 rpm increments to
10,500 rpm, or in 1000 rpm increments to 16,000 rpm. Changing settings alters the
way the ECU reads the M ap s, and will chan ge the tuning of the en gin e dramatically .
Do not change this setting once tuned unless necessary.
The valid values for this parameter are: 10,500rpm – 16,000rpm
Road Speed Value
This p arameter is a multip lier that allows the user to calibrate the road-sp eed inp ut by
comparing the road-sp eed value on the En gine Data Page with that of the vehicles
speedometer. To calibrate the road-speed input, modify this value until the road-speed
value on the engine data page matched that on the vehicle speedometer.
The valid values for this parameter are: 100 – 60,000
F10 Type
This field is only accessible by Haltech but serves as an indication of which of the 4
F10 variants is connected.
The valid values for this parameter are: F10, F10A, F10-8, and F10A-8
3.1.2 Fuel Setup
To access the Fuel Setup page p ress Alt – S to open the Set-up menu then scroll to the Fuel
Set-up menu item and press enter.
Ign / By
Ignition Divide By is the number of ignition pulses that will be counted until the next
injection pulse (remember the trigger wire for the F10 should ideally have one trigger
event for each sp ark event). For almost all multipoint sy stems, injection should occur
once per revolution and so Ignition Divide By should be set to half the number of
cylinders. If the system is operating in Batch Fire mode, or is a rotary, then a value of
1 is suggested.