"Check Engine" Warning over bumps

Jakg · 11th December 2014, 17:43

Getting a "Check Engine" warning on the screen for maybe 1/4 of a second every couple of days.

Looks to be related to when the car goes over a large bump (e.g. hump back bridge).

Any ideas?

klarzy · 11th December 2014, 18:07

Quote:

Originally Posted by Jakg

Getting a "Check Engine" warning on the screen for maybe 1/4 of a second every couple of days.

Looks to be related to when the car goes over a large bump (e.g. hump back bridge).

Any ideas?

loose connection

FROGGY · 11th December 2014, 18:08

In the bridge or the car????????????????

klarzy · 11th December 2014, 18:09

no lights coming on on the bridge

iandux · 11th December 2014, 20:31

Found mine was the connector on the diesel filter head. Unplugged and plugged in a few times and problem solved.

Jules · 11th December 2014, 20:49

T4 may have logged it in the EMS history

Jakg · 11th December 2014, 20:54

Quote:

Originally Posted by iandux

Found mine was the connector on the diesel filter head. Unplugged and plugged in a few times and problem solved.

Do you know how you found this out? The engine performance feels ok when it happens.

Quote:

Originally Posted by Jules

T4 may have logged it in the EMS history

I don't have access to a T4 unfortunately. I've tried using a Scanguage which reports no errors, and a BMW scanner which doesn't seem to show any obvious errors.

lightningmark · 12th December 2014, 06:16

Had exact same symptoms and it was indeed the electrical connection to ubp fuel pump

11th December 2014, 17:43	#1
Jakg This is my second home N/A Join Date: Feb 2010 Location: Suffolk Posts: 6,867 Thanks: 0 Thanked 397 Times in 302 Posts	"Check Engine" Warning over bumps Getting a "Check Engine" warning on the screen for maybe 1/4 of a second every couple of days. Looks to be related to when the car goes over a large bump (e.g. hump back bridge). Any ideas?

11th December 2014, 18:08	#3
FROGGY I really should get out more....... MG ZT CDTI Join Date: Sep 2007 Location: 17500 REAUX, CHARENTE-MARITIME Posts: 2,749 Thanks: 2 Thanked 133 Times in 90 Posts	In the bridge or the car???????????????? __________________ http://i200.photobucket.com/albums/a...ps628d4119.jpg IN THE BLACK NOW

11th December 2014, 18:09	#4
klarzy This is my second home none but not gone Join Date: Mar 2013 Location: March, Cambs Posts: 16,437 Thanks: 894 Thanked 4,247 Times in 3,025 Posts	no lights coming on on the bridge __________________ [SIGPIC][/SIGPIC]….All praise Bananaswan….

11th December 2014, 20:31	#5
iandux Loves to post At last....75 Facelift Connie Join Date: Aug 2013 Location: Longridge Posts: 443 Thanks: 199 Thanked 117 Times in 70 Posts	Found mine was the connector on the diesel filter head. Unplugged and plugged in a few times and problem solved. __________________ A man is not a failure if he falls.....only if he refuses to get up again. This vehicle was the 96,129th 75 to run off the production line, out of 112,381 This vehicle was the 2,123rd 75 CDT Connoisseur SE (135) to be made out of 4,744 This vehicle was the 394th 75 in Firefrost Red (code: CEV) to be made out of 2,089 Firefrost Red 75s

11th December 2014, 20:49	#6
Jules This is my second home ZT 260 SE Twilight and 10 other 75 ZT's :O Join Date: Jan 2007 Location: Conwy NORTH WALES Posts: 11,094 Thanks: 512 Thanked 1,116 Times in 763 Posts	T4 may have logged it in the EMS history __________________ [SIGPIC][/SIGPIC] Newbies do now!! 1. Plenum drains..all 3 or 4 year dependent 2. Cooling fan..All speeds functioning 3. Bonnet cable divider block

12th December 2014, 06:16	#8
lightningmark Gets stuck in MG ZT CDTI +135 Join Date: Feb 2010 Location: Wilmslow Posts: 566 Thanks: 36 Thanked 57 Times in 51 Posts	Had exact same symptoms and it was indeed the electrical connection to ubp fuel pump