GEMS - General Engine Management Systems Ltd - Forum

I have changed THROTTLE BODY IDLE SPEED CONTROLLER stepper motor. Do I have to install it in ecu.End how in that case
EVO6 GIN 2.41

STEPPER MOTOR for an EVO6 on G2.41. Remember that this ECU only supports two types of Idle by-pass valves and only one type of stepper motor. A 5/6 wire stepper motor and 2 wire spring return type. If you have a 4 wire type, please follow this link http://www.gems.co.uk/gemsforum/viewtopic.php?f=5&t=479

When the option Idle PW is zero then the standard stepper motor outputs are active. The five or six wire stepper motor, is driven closed at power on this is given the nominal step position of 0 and then the stepper opens the by-pass to the value specified in the Idle Step table and Idle Speed table. Idle Set is a slow proportional control parameter that is
activated when Throttle < Idle Throttle option, and constrained not to exceed Idle set+ and Idle set– options, when engine speed is not equal to Idle set speed option. Idle MOD the user variable may be adjusted to optimise the table. A/C Idle is a response to an air conditioning request for an elevated idle. >12volt_Idle is the response due to a low battery voltage.
Therefore, Idle Target = Idle from Step Table + Idle Mod + Idle speed + Idle Set+{A/C Idle}+{>12volt_idle}

>12volt_Idle is added to the current IDLE value when the battery supply voltage is less than 12.5volts. A/C Idle is added if the air conditioning request is pulled low.

If you need a pin-out for the G2.41, you can find it in the manual below...

Best regards,
RickS