User guide

F10X Manual

CHAPTER 11 OUTPUT OPTIONS SET-UP

The output options and PWM set-up pages are used to program settings for the output

functions of the ECU in a similar way as the set-up pages are programmed. Refer to 4.1

Using the ECU Set-up Pages, p34.

11.1 Idle Speed Control and O

Closed Loop Control.

11.1.1 Idle Control

The idle control dialog is accessed by selecting Options->Idle Speed Control. The idle

control dialog has a series of fields common to the 4-wire bipolar stepper motor control and

BAC idle control.

There are ten parameters to be adjusted in the idle speed control:

Enable/Disable

The Idle Speed Control can be switched on or off.

Target Idle Speed

This is the engine speed that the ECU attempts to maintain at idle.

Cold Idle-Up RPM

This speed is added to the Target Speed when the engine temperature is cold.

Start RPM

For a period of around 20 seconds after the engine starts, you can specify an extra

increase in idle rpm. Most factory cars will rev 200-300rpm above the cold idle-up

RPM for a small time when they are first turned on. Setting the Start RPM to 0 will

mean that the engine will rev to the Target Idle Speed + Cold Idle-Up RPM when

turned on and resort back to the Target Idle Speed when warm. If you set the Start

RPM to 200RPM, then the engine will rev to the Target Idle Speed + Cold Idle-Up

RPM + 200RPM and resort back to the Target Idle Speed + Cold Idle-Up RPM after

20 seconds and then resort back to the Target Idle Speed when warm. Graphically, this

can be represented as:

Target Idle RPM

Target Idle RPM + Cold Idle-Up RPM

Target Idle RPM + Cold Idle-Up RPM + Start RPM

Engine Cold

Engine Warm

20sec

5-10 mins

RPM

Time