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GOSS IDLE SPEED MOTOR
FORD ESCAPE BA,ZA,ZB,ZC 3.0LTR V6 2002-2008
MAZDA MPV LW 2002-2006 3.0LTR V6
MAZDA TRIBUTE 2000-2008 3.0LTR V6
Idle Speed Control
Although all new petrol engine vehicles currently manufactured utilise the Electronic Throttle Body control system for both acceleration control and Idle stability, there are millions of vehicles still driving the streets that are fitted with a separate Idle control system that still requires servicing, testing and renewing and the occasional resetting.
We are looking at the characteristics of two of the most common systems used, which are the ECU operated Idle Air Control (IAC) control system and the Stepper Motor Idle speed control.
IAC – Idle Air Control.
This was a widely used system in the industry (generally local and Japanese vehicles) and because of its location on the throttle body can be problematic due to carbon build-up creating insufficient or excess idle speed.
All IAC systems retain common characteristics which include: