Idle issue with 550 kit

3M · 10-05-2018, 03:06 AM

Hi,

Anyone with an ESS kit run into this issue? I’ve got a 2011 e90 with a 550 kit installed brand new last year. Got several thousand miles on it already. Right after the cold start, the idle would fluctuate, then go away once the car is warmed up. Plugs are under a year old. It's done this since day one. Any ideas? Thanks.

BOOF-M3 · 10-05-2018, 06:35 AM

Quote:

Originally Posted by 3M

Hi,

Anyone with an ESS kit run into this issue? I’ve got a 2011 e90 with a 550 kit installed brand new last year. Got several thousand miles on it already. Right after the cold start, the idle would fluctuate, then go away once the car is warmed up. Plugs are under a year old. It's done this since day one. Any ideas? Thanks.

Possibly the breather valve. $85 part and takes under 45 minutes to install. There's a diy that has been commented on recently so it should be easy enough to find.

JsL · 10-05-2018, 09:48 AM

Do you see any fluctuations after filling up the tank?

I would start with the breather valve as Boof mentioned.

Also, the service interval is 7.5k to 10k for the spark plugs. Change them if they are more than that.

Iyzmi · 10-05-2018, 10:07 AM

Quote:

Originally Posted by JsL

Do you see any fluctuations after filling up the tank?

I would start with the breather valve as Boof mentioned.

Also, the service interval is 7.5k to 10k for the spark plugs. Change them if they are more than that.

I think that depends on how hard the car is driven. I drive my car fairly lightly, mostly highway cruising miles, and when I changed the plugs at 15k supercharged miles they looked almost brand new. I also made no additional power on the dyno after replacing them. So now I replace them every other year, roughly every 15-20k miles.

I agree with Boof, change the breather valve.

RC Post · 10-05-2018, 01:54 PM

Seems like a very common issue that's frustrating..

I don't think its your SC kit. I have the exact problem with stock engine. I changed out the breather valve like people suggested but problem still arises..

Shiza · 10-05-2018, 01:56 PM

Quote:

Originally Posted by RC Post

Seems like a very common issue that's frustrating..

I don't think its your SC kit. I have the exact problem with stock engine. I changed out the breather valve like people suggested but problem still arises..

Next step would be your idle control valve in my opinion.

3M · 10-05-2018, 01:58 PM

Quote:

Originally Posted by JsL

Do you see any fluctuations after filling up the tank?

I would start with the breather valve as Boof mentioned.

Also, the service interval is 7.5k to 10k for the spark plugs. Change them if they are more than that.

No fluctuations after tank fill ups. It's only after cold starts. Thank you all for the info.

3M · 10-05-2018, 03:55 PM

Quote:

Originally Posted by RC Post

Seems like a very common issue that's frustrating..

I don't think its your SC kit. I have the exact problem with stock engine. I changed out the breather valve like people suggested but problem still arises..

Never had this problem when I was NA but we both seem to have the same issue where it only fluctuates after the cold start. I'll replace the BV either way and see what happens. Are you replacing your ICV?

FazerBoy · 10-05-2018, 04:53 PM

I’ve got this issue too with my ESS 625 kit.

On a cold start the idle is very lumpy for a few minutes then settles down once the car is warm. Doesn’t do it in when I start the car from warm.

I’ve called it an issue rather than a problem because I suppose I can live with it. Once the car is warm the idle is smooth with no fluctuations. On the other hand if it’s a simple fix I’d like to fix it.

RC Post · 10-05-2018, 11:19 PM

Quote:

Originally Posted by 3M

Never had this problem when I was NA but we both seem to have the same issue where it only fluctuates after the cold start. I'll replace the BV either way and see what happens. Are you replacing your ICV?

I don't plan to change it out anytime soon, you?.. I just don't want to change out a part that's not confirmed fault and waste time and money. Let's see how long I can live with it first I suppose.

It's completely normal thru out the day after warm up

Seems like a phenomenon for our cars from what I've been reading

3M · 10-06-2018, 05:30 AM

Quote:

Originally Posted by FazerBoy

I’ve got this issue too with my ESS 625 kit.

On a cold start the idle is very lumpy for a few minutes then settles down once the car is warm. Doesn’t do it in when I start the car from warm.

I’ve called it an issue rather than a problem because I suppose I can live with it. Once the car is warm the idle is smooth with no fluctuations. On the other hand if it’s a simple fix I’d like to fix it.

I'll let you know if replacing the BV fixes it. It'll be a couple of weeks before I can replace it since it'll take a week or so for the part to get here from the US.

3M · 10-06-2018, 05:40 AM

Quote:

Originally Posted by RC Post

I don't plan to change it out anytime soon, you?.. I just don't want to change out a part that's not confirmed fault and waste time and money. Let's see how long I can live with it first I suppose.

It's completely normal thru out the day after warm up

Seems like a phenomenon for our cars from what I've been reading

I'll hold off on the ICV if replacing the BV doesn't fix it. I'll keep dealing with it for now and use the $$ for RB.

OneSickM · 10-07-2018, 08:57 PM

I have the same exact problem and it happened exactly when ESS 625 was installed. I was never able to solve the problem. I have asked some tuners and said slight idle bouncing at cold start is nothing to worry about but to me that's a problem and can't find what is causing it.

FYI, I replaced BV with new one but it didn't help at all.

Matheus · 10-08-2018, 09:51 AM

Same thing here. ESS 650 kit. Asked many people and no one could give a precise answer. Been living with it for the past 5k miles. It's annoying, but I've never had any problem.

3M · 10-08-2018, 10:49 AM

Quote:

Originally Posted by OneSickM

I have the same exact problem and it happened exactly when ESS 625 was installed. I was never able to solve the problem. I have asked some tuners and said slight idle bouncing at cold start is nothing to worry about but to me that's a problem and can't find what is causing it.

FYI, I replaced BV with new one but it didn't help at all.

Well shoot. I guess I'll hold off on the BV as well. Is there someone with an ESS kit that has cold-start delete?

Matheus · 10-08-2018, 12:04 PM

Quote:

Originally Posted by 3M

Quote:

Originally Posted by OneSickM

I have the same exact problem and it happened exactly when ESS 625 was installed. I was never able to solve the problem. I have asked some tuners and said slight idle bouncing at cold start is nothing to worry about but to me that's a problem and can't find what is causing it.

FYI, I replaced BV with new one but it didn't help at all.

Well shoot. I guess I'll hold off on the BV as well. Is there someone with an ESS kit that has cold-start delete?

Forgot to mention that I do have cold start delete

WickedE93 · 10-08-2018, 01:04 PM

I had the same issue when I put my Gintani kit, if you have a weak Idle control valve the supercharger will push it overboard and cause it to exhibit issues.

3M · 10-08-2018, 01:35 PM

Quote:

Originally Posted by Matheus

Forgot to mention that I do have cold start delete

Thanks for the info. So at one point does yours fluctuate if you don't have the cold start? I asked ESS about the cold start delete but they advised against it.

3M · 10-08-2018, 01:37 PM

Quote:

Originally Posted by WickedE93

I had the same issue when I put my Gintani kit, if you have a weak Idle control valve the supercharger will push it overboard and cause it to exhibit issues.

So did you replace your ICV and it fixed it?

WickedE93 · 10-08-2018, 02:38 PM

Quote:

Originally Posted by 3M

So did you replace your ICV and it fixed it?

Yes sir!

Matheus · 10-08-2018, 04:01 PM

Quote:

Originally Posted by 3M

Thanks for the info. So at one point does yours fluctuate if you don't have the cold start? I asked ESS about the cold start delete but they advised against it.

This is what mine looks like

It goes away after 2 minutes or when car is already warmed up. Only happens in cold start.

3M · 10-08-2018, 11:24 PM

Quote:

Originally Posted by WickedE93

Yes sir!

That's good to know! Did you replace it yourself? Any tips? I found a DIY thread for it.

https://www.m3post.com/forums/showthread.php?t=842102

10-05-2018, 03:06 AM	#1
3M Enlisted Member 4 Rep 42 Posts Drives: E90 M3 Join Date: Aug 2008 Location: Germany iTrader: (0)	Idle issue with 550 kit Hi, Anyone with an ESS kit run into this issue? I’ve got a 2011 e90 with a 550 kit installed brand new last year. Got several thousand miles on it already. Right after the cold start, the idle would fluctuate, then go away once the car is warmed up. Plugs are under a year old. It's done this since day one. Any ideas? Thanks. __________________ 2011 E90 SSII ZCP, DCT, ESS VT1-550
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10-05-2018, 09:48 AM	#3
JsL Major 448 Rep 1,263 Posts Drives: 2011 AW M3 ZCP Join Date: Dec 2013 Location: SF Bay Area iTrader: (2)	Do you see any fluctuations after filling up the tank? I would start with the breather valve as Boof mentioned. Also, the service interval is 7.5k to 10k for the spark plugs. Change them if they are more than that.
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10-05-2018, 01:54 PM	#5
RC Post Private First Class 68 Rep 113 Posts Drives: E90 M3 6MT Join Date: Feb 2013 Location: Lng Bch Cali iTrader: (2)	Seems like a very common issue that's frustrating.. I don't think its your SC kit. I have the exact problem with stock engine. I changed out the breather valve like people suggested but problem still arises..
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10-05-2018, 04:53 PM	#9
FazerBoy Lieutenant 49 Rep 510 Posts Drives: BMW E92 M3 Join Date: Jul 2008 Location: London, UK iTrader: (0)	I’ve got this issue too with my ESS 625 kit. On a cold start the idle is very lumpy for a few minutes then settles down once the car is warm. Doesn’t do it in when I start the car from warm. I’ve called it an issue rather than a problem because I suppose I can live with it. Once the car is warm the idle is smooth with no fluctuations. On the other hand if it’s a simple fix I’d like to fix it.
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10-07-2018, 08:57 PM	#13
OneSickM Captain 122 Rep 747 Posts Drives: M3 Join Date: Jul 2014 Location: --- iTrader: (2)	I have the same exact problem and it happened exactly when ESS 625 was installed. I was never able to solve the problem. I have asked some tuners and said slight idle bouncing at cold start is nothing to worry about but to me that's a problem and can't find what is causing it. FYI, I replaced BV with new one but it didn't help at all.
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10-08-2018, 09:51 AM	#14
Matheus Private 23 Rep 55 Posts Drives: 2012 M3 E92 Fire Orange Join Date: Mar 2015 Location: Brazil iTrader: (0)	Same thing here. ESS 650 kit. Asked many people and no one could give a precise answer. Been living with it for the past 5k miles. It's annoying, but I've never had any problem. __________________ 2012 E92 M3 ESS VT2 650 - Bilstein B16 Damptronic Coilovers - Brembo 380mm BBK - Innotech Catless Exhaust - GTS Carbon Wing - RollCage - Back Seat Delete - Sparco Evo Racing seats @m3boosted
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10-08-2018, 01:04 PM	#17
WickedE93 Major 224 Rep 1,131 Posts Drives: White E93 M3 Join Date: Feb 2014 Location: Pico Rivera iTrader: (2)	I had the same issue when I put my Gintani kit, if you have a weak Idle control valve the supercharger will push it overboard and cause it to exhibit issues. __________________ Gintani Supercharger/ Gintani x-pipe/ Challenge rear muffler section powder coated black/ Alpine DCT Tune & Coding/ Republic Werkz modded headlights and tail lights/ Gloss black cosmetics, hood vents, and mirror caps/ Piano Black interior trim, Roof painted black by Ranz Motorsports/ Velos Designwerkz Solo V's/ KW V3's/ MRF Solid sub-frame bushings W/ Delrin Diff bushings/ Duke Dynamics CSL Trunk/ Euro bumper/ Full Dinmann aero kit.
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