Rough Idle

Chris1337 · 03-06-2019, 08:20 PM

When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this?
Mods:
fbo e50 stage 2 lpfp custom tune on mhd
plugs and coils are new, had this problem before I changed either of them so ignition is not the issue

redwildcat17 · 03-07-2019, 01:44 PM

Quote:

Originally Posted by Chris1337

When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this?
Mods:
fbo e50 stage 2 lpfp custom tune on mhd
plugs and coils are new, had this problem before I changed either of them so ignition is not the issue

Try resetting adaptations. Did this for mine and it smoother out completely

Chris1337 · 03-07-2019, 08:03 PM

Quote:

Originally Posted by redwildcat17

Quote:

Originally Posted by Chris1337

When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this?
Mods:
fbo e50 stage 2 lpfp custom tune on mhd
plugs and coils are new, had this problem before I changed either of them so ignition is not the issue

Try resetting adaptations. Did this for mine and it smoother out completely

Quote:

Originally Posted by redwildcat17

Quote:

Originally Posted by Chris1337

When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this?
Mods:
fbo e50 stage 2 lpfp custom tune on mhd
plugs and coils are new, had this problem before I changed either of them so ignition is not the issue

Try resetting adaptations. Did this for mine and it smoother out completely

just fueling?

redwildcat17 · 03-07-2019, 08:05 PM

Quote:

Originally Posted by Chris1337

Quote:

Originally Posted by redwildcat17

Quote:

Originally Posted by Chris1337

When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this?
Mods:
fbo e50 stage 2 lpfp custom tune on mhd
plugs and coils are new, had this problem before I changed either of them so ignition is not the issue

Try resetting adaptations. Did this for mine and it smoother out completely

Quote:

Originally Posted by redwildcat17

Quote:

Originally Posted by Chris1337

When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this?
Mods:
fbo e50 stage 2 lpfp custom tune on mhd
plugs and coils are new, had this problem before I changed either of them so ignition is not the issue

Try resetting adaptations. Did this for mine and it smoother out completely

just fueling?

Umm I reset vanos, high pressure fuel,and lamda I think

E92TiAg335i · 03-12-2019, 09:52 PM

Quote:

Originally Posted by redwildcat17

Quote:

Originally Posted by Chris1337

Quote:

Originally Posted by redwildcat17

Quote:

Originally Posted by Chris1337

When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this?
Mods:
fbo e50 stage 2 lpfp custom tune on mhd
plugs and coils are new, had this problem before I changed either of them so ignition is not the issue

Try resetting adaptations. Did this for mine and it smoother out completely

Quote:

Originally Posted by redwildcat17

Quote:

Originally Posted by Chris1337

When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this?
Mods:
fbo e50 stage 2 lpfp custom tune on mhd
plugs and coils are new, had this problem before I changed either of them so ignition is not the issue

Try resetting adaptations. Did this for mine and it smoother out completely

just fueling?

Umm I reset vanos, high pressure fuel,and lamda I think

How do you do this? Just 1-4 via JB4?

redwildcat17 · 03-13-2019, 11:35 AM

Quote:

Originally Posted by E92TiAg335i

Quote:

Originally Posted by redwildcat17

Quote:

Originally Posted by Chris1337

Quote:

Originally Posted by redwildcat17

Quote:

Originally Posted by Chris1337

When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this?
Mods:
fbo e50 stage 2 lpfp custom tune on mhd
plugs and coils are new, had this problem before I changed either of them so ignition is not the issue

Try resetting adaptations. Did this for mine and it smoother out completely

Quote:

Originally Posted by redwildcat17

Quote:

Originally Posted by Chris1337

When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this?
Mods:
fbo e50 stage 2 lpfp custom tune on mhd
plugs and coils are new, had this problem before I changed either of them so ignition is not the issue

Try resetting adaptations. Did this for mine and it smoother out completely

just fueling?

Umm I reset vanos, high pressure fuel,and lamda I think

How do you do this? Just 1-4 via JB4?

Not sure on jb4 I use MHD

03-06-2019, 08:20 PM	#1
Chris1337 First Lieutenant 27 Rep 290 Posts Drives: 2012 e92 335i Join Date: Apr 2017 Location: Miami, FL iTrader: (0)	Rough Idle When the car is warmer up and I have driven it for a while my idle gets rough. I have noticed that when I just put the a/c on and lift my foot from the brake at a stop the car becomes very jerky for a little bit. Anyone have experience with this? Mods: fbo e50 stage 2 lpfp custom tune on mhd plugs and coils are new, had this problem before I changed either of them so ignition is not the issue
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