Idle control valve

[lesliehedley]

I have fitted an Emerald ECU to my 400SE in place of the flapper AFM and ECU. My only problem with it is that I have no extra air valve or idle control valve. Does anyone know if the later hotwire stepper motors have the same mounting points as the flapper overrun valve, so that I can replace the overrun valve which isn't used, with the stepper motor for cold running? TIA

[chunder]

lesliehedley said:

I have fitted an Emerald ECU to my 400SE in place of the flapper AFM and ECU. My only problem with it is that I have no extra air valve or idle control valve. Does anyone know if the later hotwire stepper motors have the same mounting points as the flapper overrun valve, so that I can replace the overrun valve which isn't used, with the stepper motor for cold running? TIA

Can't answer the main point of your query but if it was only for cold running rather than actual idle speed control you could plumb in a simple on/off solenoid in place of the original extra air valve - or simply put the extra air valve back in.
A solenoid could be switched by the Emerald depending on coolant temp if it has auxiliary outputs available.