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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Idle 1200 rpm



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      05-04-2020, 10:48 PM   #1
dyllan12
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Idle 1200 rpm

I just turn mhd and notice the setting idle for 1200 i'm not sure if i accidentally did that or that was default ... but Is 1200 rpm idling bad or good or don't matter??
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      05-04-2020, 11:06 PM   #2
iqraceworks
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Can you translate that please?

It sounds like you are asking if a 1,200 rpm idle is normal? No...it's not. Should be around 650-700.
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      05-04-2020, 11:39 PM   #3
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Originally Posted by iqraceworks View Post
Can you translate that please?

It sounds like you are asking if a 1,200 rpm idle is normal? No...it's not. Should be around 650-700.
Yea that's how it was before i tunes it and played with the setting on MHD so you believe i should just bring it back down to stock rpm
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      05-05-2020, 12:57 AM   #4
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is it just me or are these fourms getting flooded lately with braindead questions ?
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      05-05-2020, 07:11 AM   #5
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Originally Posted by Silent11N54 View Post
is it just me or are these fourms getting flooded lately with braindead questions ?
so delete the app
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      05-05-2020, 07:11 AM   #6
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Quote:
Originally Posted by dyllan12 View Post
Yea that's how it was before i tunes it and played with the setting on MHD so you believe i should just bring it back down to stock rpm
No....leave the idle at 1,200. Is there a way you can bump it up even higher?
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      05-05-2020, 07:12 AM   #7
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Quote:
Originally Posted by iqraceworks View Post
Quote:
Originally Posted by dyllan12 View Post
Yea that's how it was before i tunes it and played with the setting on MHD so you believe i should just bring it back down to stock rpm
No....leave the idle at 1,200. Is there a way you can bump it up even higher?
hahaha i gotchu lnao appreciate it though
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      05-05-2020, 08:41 AM   #8
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I probably wouldn't go up to 1200 rpm, but mine is set to 900 rpm because of my SMFW and it drastically reduces the chatter at idle. I'm sure many others have done the same but 1200 is a bit high. There may be a use case for it but I'm not sure what it is.
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      05-05-2020, 09:08 AM   #9
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Originally Posted by nissubaru View Post
I probably wouldn't go up to 1200 rpm, but mine is set to 900 rpm because of my SMFW and it drastically reduces the chatter at idle. I'm sure many others have done the same but 1200 is a bit high. There may be a use case for it but I'm not sure what it is.
understandable, thank y'all again
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      05-05-2020, 10:58 AM   #10
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1200 is not going to hurt. Just likely uneeded. I run at 900rpm all day every day and have for years. No issues. Still very low in the rev range and zero load.
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      05-05-2020, 11:08 AM   #11
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I guess I don't really understand what the issue is here. You installed MHD.....and you accidentally set the idle to 1,200rpm somehow...........so why don't you take 45seconds, put the idle back to the stock setting with MHD, and reflash the car? Why leave it?
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      05-06-2020, 03:38 PM   #12
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Quote:
Originally Posted by iqraceworks View Post
I guess I don't really understand what the issue is here. You installed MHD.....and you accidentally set the idle to 1,200rpm somehow...........so why don't you take 45seconds, put the idle back to the stock setting with MHD, and reflash the car? Why leave it?
Because thats what he saw when he plugged in MHD and doesnt know if he did that or not.
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      05-06-2020, 03:41 PM   #13
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Quote:
Originally Posted by CLEAN E93 View Post
Quote:
Originally Posted by iqraceworks View Post
I guess I don't really understand what the issue is here. You installed MHD.....and you accidentally set the idle to 1,200rpm somehow...........so why don't you take 45seconds, put the idle back to the stock setting with MHD, and reflash the car? Why leave it?
Because thats what he saw when he plugged in MHD and doesnt know if he did that or not.
exactly haha 😂
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      05-06-2020, 04:10 PM   #14
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Mine was had an idle at around 1100-1200 even after warming up a bit, I reset adaption for the car and it was fixed immediately

I would also consider looking in to plugs and coils if you haven't done that yet and a walnut blast wouldn't hurt, could be mhd trying to compensate for one of those two things

Try clearing adaptions first and go from there
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      05-06-2020, 04:12 PM   #15
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Quote:
Originally Posted by iqraceworks View Post
I guess I don't really understand what the issue is here. You installed MHD.....and you accidentally set the idle to 1,200rpm somehow...........so why don't you take 45seconds, put the idle back to the stock setting with MHD, and reflash the car? Why leave it?
Oh lmao it's just set to 1200 that's funny 😂 didn't read all the comments first
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      05-10-2020, 11:02 PM   #16
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Quote:
Originally Posted by dyllan12 View Post
Yea that's how it was before i tunes it and played with the setting on MHD so you believe i should just bring it back down to stock rpm
Face-palm,

No idea what made you think bumping the idle speed to 1200rpm was a good idea, just bring it down to about 700rpm.

1200rpm is the approximate idle speed when the engine cold starts, obviously not normal to idle at that speed.
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