|
|
|
|
|
|
BMW Garage | BMW Meets | Register | Today's Posts | Search |
|
BMW 3-Series (E90 E92) Forum
>
High boost pressure
|
|
03-28-2018, 11:33 AM | #1 |
New Member
0
Rep 13
Posts |
High boost pressure
Hi guys
I was looking thru some of the screens in inpa and when revving the car at about 2.5k the boost pressure seemed exceedingly high? Any ideas what would cause that? It's a 2007 e91 318d with an n47 engine Thanks |
03-29-2018, 04:48 AM | #2 |
Lieutenant Colonel
840
Rep 1,993
Posts
Drives: F30 335d
Join Date: Oct 2013
Location: Sheffield
|
A faulty coolant temp sensor could cause that!
My coolant temp sensor was faulty and would fluctuate between normal temps and -40! The car would then overboost. Error codes were raised in the DDE. First thing I would check though is the MAP sensor in the inlet manifold and give it a clean with carb cleaner - see if that helps.
__________________
if I've helped - an Appreciate would be, er, very appreciated!
|
Appreciate
0
|
03-29-2018, 05:11 AM | #3 |
New Member
0
Rep 13
Posts |
Thanks ill give that a go, Temp sensor is fine i know that much. MAP sensor may not be though so i will whip that out and give it a clean.
DDE is error free but from what i have read the MAP sensor doesn't always through an error. |
Appreciate
0
|
03-29-2018, 06:04 AM | #4 |
First Lieutenant
96
Rep 398
Posts
Drives: Merc, VW, Porsche, Suzuki
Join Date: Dec 2016
Location: Herts, UK
|
11000 mBar is 11 Bar - a huge pressure which would split / detach a boost hose with no hesitation. I'm not even sure if a 320d turbocharger is capable of producing such boost. A bad MAP sensor would be my guess too.
|
Appreciate
0
|
03-29-2018, 12:52 PM | #6 |
Major
147
Rep 1,015
Posts |
|
Appreciate
0
|
03-29-2018, 03:35 PM | #7 |
First Lieutenant
96
Rep 398
Posts
Drives: Merc, VW, Porsche, Suzuki
Join Date: Dec 2016
Location: Herts, UK
|
|
Appreciate
0
|
03-29-2018, 04:37 PM | #8 |
Lieutenant Colonel
840
Rep 1,993
Posts
Drives: F30 335d
Join Date: Oct 2013
Location: Sheffield
|
I would probably just replace the MAP sensor, I know I suggested to clean it but not sure cleaning will have much of an effect.
I wouldn't think that the sensor is particularly expensive. |
Appreciate
0
|
Bookmarks |
|
|