325i idle set up how?
Moderator: martauto
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cosmic
- E30 Zone Newbie
- Posts: 2
- Joined: Wed Nov 09, 2005 11:00 pm
hi firstly thanks to every one who helped with suggetions on my idling problem seems cured now [fingers crossed] but i have had to adjust idle speed with small allen screw next to accelerator linkage on throttle assembly is this the correct way to do this as i have read else where its controled by ecu & sensors as stated before i have no air leaks & a new idle control valve any advice gratefully received cosmic
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kam-325i
- E30 Zone Team Member
- Posts: 4851
- Joined: Tue Sep 27, 2005 11:00 pm
- Location: TELFORD !!!! (Shropshire) Stevetigger Land !!!
The Idle speed IS controlled by the ECU. This is how it works
Under the throttle body, there is a switch, called the TPS, Throttle Position Sensor/Switch. This has three states, Idle, Open & WOT (Wide open Throttle). This must be working properly for the idle to be controlled. To check it works, Gentley move the throttle by hand from idle/closed(with engine off so you can hear) to just open, you should here a click of the switch, if there is no click, the ECU wont know when the engine is supposed to be at idle, hence a crap idle, i know, i had the same problem.
Under the throttle body, there is a switch, called the TPS, Throttle Position Sensor/Switch. This has three states, Idle, Open & WOT (Wide open Throttle). This must be working properly for the idle to be controlled. To check it works, Gentley move the throttle by hand from idle/closed(with engine off so you can hear) to just open, you should here a click of the switch, if there is no click, the ECU wont know when the engine is supposed to be at idle, hence a crap idle, i know, i had the same problem.
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