Click to go to Forum Home Click to go to maXbimmer Home

Go Back   maXbimmer Forums > maXimum Tech > 5 series
User Name
Password


Welcome to Maxbimmer.com!

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

Reply
 
Thread Tools Rate Thread Display Modes
Old 11-25-2009, 09:39 PM   #1
JINT
5th Gear Member
 
JINT's Avatar
 
Join Date: Mar 2008
Location: Jewtown
Posts: 1,138
535i E34 dies at idle, ecu cuts fuel and spark, oil pump dead?

SO what happened today, car dies at idle and doesn't start right away, starts only after like 5-7 minutes of standing. While I'm driving it, it's fine, no problems, i come to a red light, dies in 10 seconds of standing. The OBC sometimes tells me "oil pressure sensor". My guess is there is not enough oil pressure at idle and the ecu shuts down the car, so oil pump has to go. Any other ideas? Can this happen due to oil pressure sensor fail?
M30B35 engine. Car is a 5spd E34.


p.s. changed fuel pump, crank position sensor, rotor, cap, spark plugs, wires, oil pressure sensor, still fack-all. Oil light flashes when i start the car, goes off when car starts, i drive for a bit, car warms up, again i go on idle car shuts off, ecu cuts fuel and spark, trying to save engine from death i guess. Maybe when car is cold oil is thick, oil pump builds pressure, when car warms up, oil gets thin, pump can't make pressure anymore. HELP, is there a way to check if the oil pump is dead?
__________________
1990 M5 Euro
You wash your car like it was your firstborn child, you tend to its needs like it was your own body, you protect it like it's your family, then you drive it like you stole it
JINT is offline   Reply With Quote
Old 11-25-2009, 09:45 PM   #2
ACS_DAN
16/F/Cali
 
ACS_DAN's Avatar
 
Join Date: Dec 2006
Location: OJ Didn't Do it.
Posts: 1,304
Send a message via MSN to ACS_DAN
What year is your car, depending on the year you may be able to perform what is called a stomp test.

Other than that, all I can say is to check for holes in your AFM boot to make sure there are no major vaccuum leaks.

http://www.bmwe34.net/Wiki/tiki-inde...535i+hot+start

This is a good site to familiarize yourself with.

I know it doesn't directly answer your question but hopefully it leads you on to getting ot the problem.
__________________

95 530i|Modifications - Work.
ACS_DAN is online now   Reply With Quote
Old 11-25-2009, 09:48 PM   #3
JINT
5th Gear Member
 
JINT's Avatar
 
Join Date: Mar 2008
Location: Jewtown
Posts: 1,138
thanks, i'll check the site, all hoses are new, it can't be a vacuum leak, car runs till it gets warm, only dies at idle after

oh and car is 1990
__________________
1990 M5 Euro
You wash your car like it was your firstborn child, you tend to its needs like it was your own body, you protect it like it's your family, then you drive it like you stole it

Last edited by JINT; 11-26-2009 at 01:50 AM.
JINT is offline   Reply With Quote
Old 11-30-2009, 12:09 AM   #4
JINT
5th Gear Member
 
JINT's Avatar
 
Join Date: Mar 2008
Location: Jewtown
Posts: 1,138
crank position sensor was bad, changed to new, car starts and runs well.
__________________
1990 M5 Euro
You wash your car like it was your firstborn child, you tend to its needs like it was your own body, you protect it like it's your family, then you drive it like you stole it
JINT is offline   Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On

Forum Jump


All times are GMT -4. The time now is 06:42 AM.


Powered by vBulletin® Version 3.8.1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.