04-25-2017, 07:13 AM | #1 |
Private
11
Rep 69
Posts
Drives: M6 14 GC frozen grey & 21 M2C
Join Date: Jun 2016
Location: Saudi Arabia
|
HELP: problem at cold start
Hi everyone,
I recently had a problem with my car and i don't know what is wrong with my baby At COLD start, after the initial engine crank the RPMs go above 1000 as usual but after that when it starts to come down the revs start going above 1000 and drops to about 500 and back up again. it continues to do that until the engine warms up after a minute or so. I have tried to clean the air filters, Mass air, added fuel injector cleaner but it's not improving. No fault codes either M6 F06 GC, DPs, drop in filters, AKRA exhuast & ESS tune PLEASE ADVISE |
04-25-2017, 07:26 AM | #2 | |
Captain
160
Rep 737
Posts |
Quote:
I got the same thing occasionally and had what sounds like the same setup with catless down pipes ... the racing idle occurred on cold starts and if I gave it some throttle it went away. Since I went to dinan stage II it seems to have gone away I am assuming it has to do with the change in back pressure with the dp and akra and the ECU working with that and the air/fuel mix ... my last M6 cab with the V10 and K&N cold air intakes and the eisenmann cat back did the same thing and it did not have a tune |
|
Appreciate
0
|
04-25-2017, 07:40 AM | #3 | |
Private
11
Rep 69
Posts
Drives: M6 14 GC frozen grey & 21 M2C
Join Date: Jun 2016
Location: Saudi Arabia
|
Quote:
|
|
Appreciate
1
LibinLu13.00 |
04-25-2017, 07:06 PM | #5 |
Captain
306
Rep 676
Posts
Drives: 2015 M6 Gran Coupe
Join Date: Oct 2011
Location: Downtown Los Angeles
|
I get in randomly on colder days. Warm or hot days never. I had it when my car was bone stock so I don't think it's an issue. It will definitely happen when I try to drive before cold start is over.
|
Appreciate
0
|
04-26-2017, 12:29 AM | #6 |
Captain
160
Rep 737
Posts |
very strange from a car development and engineering perspective
__________________
Current Garage:
2019 M2 Comp, 2019 GLC 63 AMG , 2017 GLS 63 AMG, 2015 S63 Amg, 2008 John Dheer Gator XUV Past Cars: 2016 M6 Cabrio, 2015 GLK 250 Bluetec, 2007 M6 Cab, 2011 S63 Amg, 2008 S450, 2006 330xi, 1998 Z24, 2002 Chev Suburban |
Appreciate
0
|
04-26-2017, 07:44 AM | #7 |
Private
11
Rep 69
Posts
Drives: M6 14 GC frozen grey & 21 M2C
Join Date: Jun 2016
Location: Saudi Arabia
|
That was also happening. but I'm mostly concerned about the new issue.
|
Appreciate
0
|
05-04-2017, 08:11 AM | #10 |
Private
11
Rep 69
Posts
Drives: M6 14 GC frozen grey & 21 M2C
Join Date: Jun 2016
Location: Saudi Arabia
|
Can someone tell me how much is the Mass Air reading at idle supposed to be???
someone told me it should be around 17-18 I'm getting 12-13 |
Appreciate
0
|
05-04-2017, 09:51 AM | #11 |
Second Lieutenant
39
Rep 250
Posts |
Time to do upgraded turbos, meth, clutches, axels, JB4, backend flash, and intake
F it LOL
__________________
2018 BMW X5M (LBB)
2018 Audi R8 V10 Plus 2018 Ford Mustang GT350 2019 Audi Q8 |
Appreciate
0
|
05-07-2017, 02:49 AM | #12 |
Private
11
Rep 69
Posts
Drives: M6 14 GC frozen grey & 21 M2C
Join Date: Jun 2016
Location: Saudi Arabia
|
|
Appreciate
0
|
Post Reply |
Bookmarks |
|
|