Menu
Home
Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Current visitors
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Reply to thread
Click here to become an Official Member of BMW Club Malaysia
Download Form
Home
Forums
BMW Tech and Performance
Engine Tech
how to tune engine idling with or without air cond
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="kevster30" data-source="post: 348106" data-attributes="member: 10"><p>Aero,</p><p></p><p>I can confirm with you now that it is one of these:</p><p></p><p>1) ICV no good </p><p>2) Vacumn leak in your induction system.</p><p>3) AFM no good</p><p></p><p>On a m40 system, the idle of the car cannot be adjusted. Idle is determined automatically on a Motronic system with/out AC on/off. If you play with the throttle adjustment, you will upset you throttle position sensor(TPS) calibration. If you don't know what this is then you should not try to DIY. Google can be your best friend.</p><p></p><p>Same thing happens when you try to tighten the accelerator cable. There should be a 1cm slack on the cable at rest as it should not put and pressure on your throttle at idle position. By playing with the cable you are only influencing the position of your throttle butterfly and will in turn influence your TPS's readings and values, which will send inaccurate info to your ECU.</p><p></p><p>You do not have an adjustment problem. You have a mechanical problem. Good luck in your troubleshooting!</p></blockquote><p></p>
[QUOTE="kevster30, post: 348106, member: 10"] Aero, I can confirm with you now that it is one of these: 1) ICV no good 2) Vacumn leak in your induction system. 3) AFM no good On a m40 system, the idle of the car cannot be adjusted. Idle is determined automatically on a Motronic system with/out AC on/off. If you play with the throttle adjustment, you will upset you throttle position sensor(TPS) calibration. If you don't know what this is then you should not try to DIY. Google can be your best friend. Same thing happens when you try to tighten the accelerator cable. There should be a 1cm slack on the cable at rest as it should not put and pressure on your throttle at idle position. By playing with the cable you are only influencing the position of your throttle butterfly and will in turn influence your TPS's readings and values, which will send inaccurate info to your ECU. You do not have an adjustment problem. You have a mechanical problem. Good luck in your troubleshooting! [/QUOTE]
Verification
Post reply
Home
Forums
BMW Tech and Performance
Engine Tech
how to tune engine idling with or without air cond
Top
Bottom
