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1.
Is there any reason why my fuel pump is louder with the adaptronic? I never used to hear it....ever. And I have never had my fans come on at idle, at least not while sitting in my driveway.

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2.
As I was revving the engine ever so gently, I was watching the gauge window. I noticed the knock incrementing to a max of 8. Is this normal? Should I be getting any knock at all?

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3.
Occasionally while the engine struggled, I would hear popcorn noises coming from the intake. I've also seen a couple other threads on this that went unresolved. Is this a concern?

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The open loop section has to be setup first, in order for closed loop to work.

Initial Setup

1) Start the motor and bring it to operating temperature.
2) Locate the motors idle bypass screw. This is normally around the throttle body or idle control valve/solenoid
3) Within WARI, set the max idle value to 0 and idle the motor to 10-20rpm less than the desired idle by screwing the motors idle bypass screw in or out. This step has to be done with no electrical load (lights/thermo fan) and air-con off. Reset the max idle value to 120 within WARI once base idle is set.

Open Loop Idle Control

Open loop idle control is done via a stepper motor or a PWM idle control solenoid(ICS). The specified idle value is given as a range of stepper motor or % of pulse width modulated idle control solenoid (ICS).

This means that at 0 idle, there is no extra air, and at 120 there is full idle air being added. The RPM which the motor is raised to is dependent on the size of the valve obviously. 120 on a small valve might idle the motor up by 3000rpm on a small motor, but only 300rpm on a large motor.

1) Leave the car to cool to the minimum temperature.

2) Start the car, and adjust the corresponding temperatures open loop idle setting within WARI. This sets the idle valve position at each temperature point. Colder temperatures require a higher value. The value is the amount of stepper motor or % of solenoid required. Adjust this value until the RPM reaches the desired idle value for that temperature(around 100rpm higher when cold, fading down to the desired idle at 50deg.

3) Adjust the air temperature correction similarly

4) Once up to temperature, engage the aircon and adjust the extra aircon effort setting until the RPM increases to 100rpm above your idle setting.

6) Adjust the extra effort after cranking value and duration to suit your motor. This setting will increase the RPM after the car starts by leaving the idle high, for the duration specified.

7) Set the electrical load value. This is the value added to the idle value (for that specific temperature) when the electrical load input is triggered. The electrical load input is programmable via any of the digital inputs.

8) Set the low battery level. This is the amount of idle to the target value (for that specific temperature) when the battery voltage is below 12.00v. This should be left at 0 unless specifically needed.

9) Save the ECU file.


Closed Loop Idle Control

Closed loop idle control works via a PID controller and a table of target speeds and corrections. It uses the same solenoid, but instead of having just a fixed value, the stepper or ICS adjusts its own value to match the target.

1) Adjust the target idle speed table, entering the desired idle values per temperature. (around 100rpm higher when cold, fading to desired RPM at round 60 degrees)

2) Set the electrical load value. This is the amount of RPM added to the target RPM (for that specific temperature) when the electrical load input is triggered. The electrical load input is programmable via any of the digital inputs.

3) Set the low battery value. This is the amount of RPM added to the target RPM (for that specific temperature) when the battery voltage is below 12.00v. This should be left at 0rpm unless specifically needed.

4) The control bands dictate the RPM in which the idle control will commence. This value is given as RPM above the target RPM. Set them around the 50-200rpm mark.

5) Neutral timeout is the amount of time the car is in the idle state before closed loop idle will commence. A setting of 1000ms is ideal for most motors.

6 Set the recovery RPM values and efforts if needed. These are the RPM at which extra effort will be given by the idle control.

PID Control

This guide is not a PID tutorial, it is how to set up a PID controller in the field.

1) Set the target RPM values all to 1000. Set the recovery RPM's to 0. Set the elec load and low batt rpm to 0. This saves these values interfering with tuning.

P) Starting at 0, adjust up by 10. This should bring the rpm closer to the target (1000rpm). Adjust in increments of 10 until the RPM is stable, even if it not on 100rpm. Continue to adjust by increments of 10 until the rpm becomes unstable. This can be done by watching both RPM and IDLE values in the F2 page. Once the RPM become unstable and "hunt" back and forth, adjust the P value lower until stable again. It will most likely not be at the desired RPM but it has to be stable to continue. Go as high as you can before it starts to hunt. Load the motor by loading the power steering or aircon to ensure the idle returns to its stable state quickly.

I) Increase this value by increments of 10 until the RPM converges to 1000rpm. Put load on the motor via the power steering or aircon, and make sure the idle returns to the target setting quickly. A higher I value will make it converge quicker, but can cause an overshoot. A setting of 120 is usually good for stepper motors, and 50 for ICV.
D) This value is rarely needed. It will lag the I value, causing a slower convergence. Low values of 0-20 normally are all that is needed, but it is not recommended.

2) Return the values which were adjusted in step 1 to normal.

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