Go Back   United Bimmer Community - BMW Forum > UnitedBimmer- Model Categories > 7 Series (E23, E32, E38, E65, E66)
FAQ Members List Calendar Advertise With Us Mark Forums Read

7 Series (E23, E32, E38, E65, E66) General discussion and technical help for all year 7 series cars.

Reply
 
Thread Tools
Old 03-30-2006, 09:43 PM   #1
tyazal

Name: tyazal
Title: United Newb
Status: Offline
Join Date: Mar 2006
User not setup in Rate My Car.
Click here to set it up.
Limited throttle

Hi, I just bought 1991 750il in great condition but having trouble with throttle. after the car warms up , sometimes it does not accelerate over 2000 rpm. after i shut it off and restart it works fine for about 1 minute then does it again. check egnie lite is off and there is no malfunction codes in the computers. I noticed that when that happens the trip meter resets itself to zeros.
can anyone give me an idea waht could it be?
  Reply With Quote
Old 03-30-2006, 11:40 PM   #2
xsperf
 
xsperf's Avatar

Name: xsperf
Title: United Baller
Status: Offline
Join Date: Apr 2005
Location: Syracuse, NY
Rate My Car: 185 / 340
Your Ride: 95 325is
if i have a question, if you put it in neutral and rev the engine, will it go over 2000RPM? and generally, when the car is fine, does it have a lot of power or no? does it feel sluggish? and what do you mean it wont accelerate over 2000RPM.. does it accelrate but very very very slowly, does it cut off and feels really jerky?
__________________

Quote:
Originally Posted by c1apton
I keep forgetting that - I have a great memory but it doesn't last long

CRS disease = Can't Remeber Shit
  Reply With Quote
Old 03-31-2006, 10:00 AM   #3
nightdevils
 
nightdevils's Avatar

Name: nightdevils
Title: Senior Member
Status: Offline
Join Date: Feb 2006
Location: Seattle, WA
Rate My Car: 159 / 340
Your Ride: 2001 BMW 530iA
has all the service been up to date? hows the engine oil looking? how many miles does the car have? I owned a e32 735il with a very leaky engine. I also have the bently manual if you want me to look something up.
__________________
  Reply With Quote
Old 03-31-2006, 08:01 PM   #4
TJsBimm

Name: TJsBimm
Title: Senior Member
Status: Offline
Join Date: Aug 2005
Location: ON Canada
Rate My Car: 224 / 340
Your Ride: 97 328i
My E36 had power loss and wasn't reaching any speeds very fast, felt like a turtle. Took the car in and the ASC throttle valve (choke) was seized, also it was throwing an O2 sensor #4 at the same time. They replaced both parts and she was alive once more. Not sure if that your problem but the situation sounded the same. Good luck!
__________________
  Reply With Quote
Old 03-31-2006, 10:03 PM   #5
komodo
 
komodo's Avatar

Name: komodo
Title: Administrator
Status: Offline
Join Date: Apr 2005
Location: Athens, GA
Rate My Car: 68 / 340
Your Ride: 1995 M3
Welcome to UB! (unfortunately I can't offer much technical help on your issue, but I can welcome you, haha. there are plenty of people here who know much more than me and can point you in the right direction though. )
__________________

  Reply With Quote
Old 04-01-2006, 11:58 AM   #6
nightdevils
 
nightdevils's Avatar

Name: nightdevils
Title: Senior Member
Status: Offline
Join Date: Feb 2006
Location: Seattle, WA
Rate My Car: 159 / 340
Your Ride: 2001 BMW 530iA
oh yeah, welcome to ub
__________________
  Reply With Quote
Old 04-01-2006, 12:23 PM   #7
TerryY
 
TerryY's Avatar

Name: TerryY
Title: Senior Member
Status: Offline
Join Date: May 2005
Rate My Car: 7 / 340
Hi and Welcome

You may be in "Limp Home" where only half of the engine is running.

Here is a good reference site for the E32-Bookmark it.

http://bmwe32.masscom.net/

The main links lead to other E32 DIY sites too.
__________________
It could be that the purpose of your life is only to serve as a warning to others. Mine sometimes feels that way.

Terry

Aloha Oregon
'95 840
'98 SVT Cobra
  Reply With Quote
Old 04-01-2006, 06:25 PM   #8
Storamin
 
Storamin's Avatar

Name: Storamin
Title: Road Kill
Status: Offline
Join Date: Apr 2005
Location: Pittsburgh, PA
User not setup in Rate My Car.
Click here to set it up.
Your Ride: 1994 325is, 2000 z3 2.3
When my car went into limp mode it wouldn't rev past 3k. It had sat for 3 weeks. However, when I turned the car off and turned it back on it reset itself.

That's interesting it resets trip meter...
  Reply With Quote
Old 04-01-2006, 07:32 PM   #9
tyazal

Name: tyazal
Title: United Newb
Status: Offline
Join Date: Mar 2006
User not setup in Rate My Car.
Click here to set it up.
Quote:
Originally Posted by xsperf
if i have a question, if you put it in neutral and rev the engine, will it go over 2000RPM? and generally, when the car is fine, does it have a lot of power or no? does it feel sluggish? and what do you mean it wont accelerate over 2000RPM.. does it accelrate but very very very slowly, does it cut off and feels really jerky?
when the car is fine it is very very powerful. it feels like the computer limits the acceleration. I noticed that the EML light doesnot come at all.
  Reply With Quote
Old 04-01-2006, 07:34 PM   #10
tyazal

Name: tyazal
Title: United Newb
Status: Offline
Join Date: Mar 2006
User not setup in Rate My Car.
Click here to set it up.
Quote:
Originally Posted by Storamin
When my car went into limp mode it wouldn't rev past 3k. It had sat for 3 weeks. However, when I turned the car off and turned it back on it reset itself.

That's interesting it resets trip meter...
it sound like it
  Reply With Quote
Old 04-01-2006, 11:41 PM   #11
xsperf
 
xsperf's Avatar

Name: xsperf
Title: United Baller
Status: Offline
Join Date: Apr 2005
Location: Syracuse, NY
Rate My Car: 185 / 340
Your Ride: 95 325is
can you rev it past 2000RPM in neutral when it is doin it?
__________________

Quote:
Originally Posted by c1apton
I keep forgetting that - I have a great memory but it doesn't last long

CRS disease = Can't Remeber Shit
  Reply With Quote
Old 04-01-2006, 11:53 PM   #12
c1apton
 
c1apton's Avatar

Name: c1apton
Title: Upgraded Member
Status: Offline
Join Date: Oct 2005
Location: Pompano Beach,Fl /Edina,Mn
Rate My Car: 134 / 340
Your Ride: 93 E34
I agree w/Terry the 12 cyls tend to act that way when they go into "limp" mode. Basically shuts down 6 cyls and explains rev limits. Unless you have access to alot of test equipment I'ld have it to the "stealer" or a good reputable shop equipped to diagnose. You can throw mega-bucks replacing parts only to find it was a ground or contact problem. A simple check is test your battery voltage level when it goes into rev limit mode - a low battery, especially in a 12cyl can react like this (including resetting trip meter)
  Reply With Quote
Old 04-02-2006, 01:02 AM   #13
Storamin
 
Storamin's Avatar

Name: Storamin
Title: Road Kill
Status: Offline
Join Date: Apr 2005
Location: Pittsburgh, PA
User not setup in Rate My Car.
Click here to set it up.
Your Ride: 1994 325is, 2000 z3 2.3
In limp mode the car runs on half cyllinders? I wasn't aware of that...
  Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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 Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Reconditioning the Throttle Body devinwwu BMW OEM Parts Department DIY's & FAQ's 2 12-11-2006 03:45 PM
big bore throttle bodies DEATH2000 E36 26 01-27-2006 10:13 AM
M50 Throttle Body xsperf Bmw Cars For Sale/Wanted 0 10-10-2005 12:04 PM
E36 Throttle Body Bore out ?? defkon99 E36 10 09-18-2005 09:36 AM
Want better throttle response? get quicker off the line billycuth E36 15 07-02-2005 04:13 PM


All times are GMT -5. The time now is 12:40 AM.

A vBSkinworks Design

 
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright © 2005-2013 UnitedBimmer.com