Idle goes wayyyy up and down - BMW Forum - BimmerWerkz.com
3-Series (E21, E30) Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.

 
LinkBack Thread Tools Display Modes
#1 (permalink) Old 10-01-2006, 03:02 AM
2nd Gear Member
 
JoeMadoo's Avatar
 
Join Date: Dec 2005
Location: Victorville, CA
Posts: 396
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
JoeMadoo is on a distinguished road
Send a message via AIM to JoeMadoo Send a message via MSN to JoeMadoo Send a message via Yahoo to JoeMadoo
(Thread Starter)
Idle goes wayyyy up and down

I came to a stop light in neutral and all of a sudden my idle started to oscilate from about 800 to 2500, about 3 times every 2 seconds. When i start the car now it revs on its own to about 3,000 for 10 seconds and starts oscilating again. While driving and i let off the throttle in gear, it still accelerates for a second before it lets off.

86 Alpine White 335is M30 Swap <br>My Car Domain
ASE L1 Smog Certified

JoeMadoo is offline  
Sponsored Links
Advertisement
 
#2 (permalink) Old 10-01-2006, 06:20 AM
1st Gear Member
 
iamjoe's Avatar
 
Join Date: Dec 2004
Location: The collected thoughts of a subconcious psyche trippin' on acid and THC. Chill as I take you on a tr
Posts: 181
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
iamjoe is on a distinguished road
Sounds like a sticky throttle plate to me, or a wierd sticky ICV.

I'm allergic to stupidity. If exposed, I may begin to insult the cause repeatedly.
The liver is evil, it must be punished!
The Great and Ganjaful Pyrolah of the Secret Brotherhood of the Huzzah
iamjoe is offline  
#3 (permalink) Old 10-01-2006, 04:26 PM
Teh Peetsa Gai
 
ldsbeaker's Avatar
 
Join Date: Apr 2004
Location: Havelock, NC
Posts: 3,478
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
ldsbeaker has a reputation beyond repute ldsbeaker has a reputation beyond repute ldsbeaker has a reputation beyond repute ldsbeaker has a reputation beyond repute ldsbeaker has a reputation beyond repute ldsbeaker has a reputation beyond repute ldsbeaker has a reputation beyond repute ldsbeaker has a reputation beyond repute ldsbeaker has a reputation beyond repute ldsbeaker has a reputation beyond repute ldsbeaker has a reputation beyond repute
remove ICV, clean with WD40 and compressed air, replace.

'86 325es (TURTL3): PJ peetsa hawler
'87 535is (BADWATER): almost done... really.
'86 325e (GRN HLL): DD/show/rocket
'04 x3 3.0i: Wife's Bimmer (manual, woot!)
My BMW Blog
ldsbeaker is offline  
#4 (permalink) Old 10-05-2006, 01:38 AM
1st Gear Member
 
Rfitz25's Avatar
 
Join Date: Apr 2006
Location: San Diego, CA
Posts: 210
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
Rfitz25 is on a distinguished road
TPS under the throttle body.

Disconnect and if nothing happens its bad LOL.

MaYBE afm?

Cheers,
Richard Fitz
'87 325is Delphin Metalic

Rfitz25 is offline  
#5 (permalink) Old 10-05-2006, 05:22 PM
Pandemonium Director
 
nukeduster's Avatar
 
Join Date: Mar 2005
Location: Scottsdale, Arizona
Posts: 2,372
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
nukeduster has a reputation beyond repute nukeduster has a reputation beyond repute nukeduster has a reputation beyond repute nukeduster has a reputation beyond repute nukeduster has a reputation beyond repute nukeduster has a reputation beyond repute nukeduster has a reputation beyond repute nukeduster has a reputation beyond repute nukeduster has a reputation beyond repute nukeduster has a reputation beyond repute nukeduster has a reputation beyond repute
Send a message via AIM to nukeduster Send a message via MSN to nukeduster
It could be a blown fuse. I had that happen before, or a bad contact point of the fuse.. i dont remmber which one it is but my 325 did that before, would rev all over the place at random. Was a blown fuse.

nukeduster is offline  
#6 (permalink) Old 10-05-2006, 05:36 PM
You Can Has A Custom Title!!
 
german-speed-demon's Avatar
 
Join Date: Feb 2005
Posts: 8,829
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future german-speed-demon has a brilliant future
At first I was thinking ICV, but rich is right. The fusebox is always a good place to start. (Cheaper, too)

R.I.P fast 6


Two wheels or Four, I'm happy as long as the throttle is pinned.
german-speed-demon is offline  
#7 (permalink) Old 10-05-2006, 07:45 PM
2nd Gear Member
 
JoeMadoo's Avatar
 
Join Date: Dec 2005
Location: Victorville, CA
Posts: 396
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 0 Post(s)
JoeMadoo is on a distinguished road
Send a message via AIM to JoeMadoo Send a message via MSN to JoeMadoo Send a message via Yahoo to JoeMadoo
(Thread Starter)
The ICV connector was broken

86 Alpine White 335is M30 Swap <br>My Car Domain
ASE L1 Smog Certified

JoeMadoo is offline  
Sponsored Links
Advertisement
 
Reply

  BMW Forum - BimmerWerkz.com > BMW Model Specific Forums > 3-Series (E21, E30)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
User Tag List

Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome